1258364160 has 360 divisors, whose sum is σ = 4607646120. Its totient is φ = 327794688.

The previous prime is 1258364141. The next prime is 1258364161. The reversal of 1258364160 is 614638521.

It is a happy number.

1258364160 is a `hidden beast` number, since 1 + 2 + 5 + 8 + 3 + 641 + 6 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 517653504 + 740710656 = 22752^2 + 27216^2 .

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1258364161) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5494926 + ... + 5495154.

It is an arithmetic number, because the mean of its divisors is an integer number (12799017).

Almost surely, 2^1258364160 is an apocalyptic number.

1258364160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1258364160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2303823060).

1258364160 is an abundant number, since it is smaller than the sum of its proper divisors (3349281960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1258364160 is an equidigital number, since it uses as much as digits as its factorization.

1258364160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315 (or 292 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 1258364160 is about 35473.4289292704. The cubic root of 1258364160 is about 1079.6146773557.

The spelling of 1258364160 in words is "one billion, two hundred fifty-eight million, three hundred sixty-four thousand, one hundred sixty".