1258746630 has 48 divisors (see below), whose sum is σ = 3121658352. Its totient is φ = 324830400.

The previous prime is 1258746583. The next prime is 1258746631. The reversal of 1258746630 is 366478521.

1258746630 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1258746631) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7000 + ... + 50660.

It is an arithmetic number, because the mean of its divisors is an integer number (65034549).

Almost surely, 2^1258746630 is an apocalyptic number.

1258746630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1258746630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1560829176).

1258746630 is an abundant number, since it is smaller than the sum of its proper divisors (1862911722).

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

1258746630 is a wasteful number, since it uses less digits than its factorization.

1258746630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43733 (or 43702 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 1258746630 is about 35478.8194561206. The cubic root of 1258746630 is about 1079.7240464374.

The spelling of 1258746630 in words is "one billion, two hundred fifty-eight million, seven hundred forty-six thousand, six hundred thirty".