1258433280 has 288 divisors, whose sum is σ = 4810921920. Its totient is φ = 309657600.

The previous prime is 1258433273. The next prime is 1258433287. The reversal of 1258433280 is 823348521.

It is an interprime number because it is at equal distance from previous prime (1258433273) and next prime (1258433287).

It is a tau number, because it is divible by the number of its divisors (288).

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 (1258433287) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 447880 + ... + 450680.

It is an arithmetic number, because the mean of its divisors is an integer number (16704590).

Almost surely, 2^1258433280 is an apocalyptic number.

1258433280 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 1258433280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2405460960).

1258433280 is an abundant number, since it is smaller than the sum of its proper divisors (3552488640).

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

1258433280 is a wasteful number, since it uses less digits than its factorization.

1258433280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2844 (or 2824 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 1258433280 is about 35474.4031662268. The cubic root of 1258433280 is about 1079.6344441827.

The spelling of 1258433280 in words is "one billion, two hundred fifty-eight million, four hundred thirty-three thousand, two hundred eighty".