1258644252 has 24 divisors (see below), whose sum is σ = 2937797632. Its totient is φ = 419410800.

The previous prime is 1258644251. The next prime is 1258644253. The reversal of 1258644252 is 2524468521.

It is an interprime number because it is at equal distance from previous prime (1258644251) and next prime (1258644253).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1258644252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1258644251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25227 + ... + 56157.

Almost surely, 2^1258644252 is an apocalyptic number.

1258644252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1258644252 is an abundant number, since it is smaller than the sum of its proper divisors (1679153380).

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

1258644252 is a wasteful number, since it uses less digits than its factorization.

1258644252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34329 (or 34327 counting only the distinct ones).

The product of its digits is 153600, while the sum is 39.

The square root of 1258644252 is about 35477.3766222927. The cubic root of 1258644252 is about 1079.6947731421.

The spelling of 1258644252 in words is "one billion, two hundred fifty-eight million, six hundred forty-four thousand, two hundred fifty-two".