1258845952 has 72 divisors (see below), whose sum is σ = 3092702816. Its totient is φ = 497995776.

The previous prime is 1258845943. The next prime is 1258845953. The reversal of 1258845952 is 2595488521.

It is a junction number, because it is equal to n+sod(n) for n = 1258845896 and 1258845905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1258845953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3723 + ... + 50314.

Almost surely, 2^1258845952 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1258845952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1546351408).

1258845952 is an abundant number, since it is smaller than the sum of its proper divisors (1833856864).

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

1258845952 is an equidigital number, since it uses as much as digits as its factorization.

1258845952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54073 (or 54059 counting only the distinct ones).

The product of its digits is 1152000, while the sum is 49.

The square root of 1258845952 is about 35480.2191650503. The cubic root of 1258845952 is about 1079.7524444032.

The spelling of 1258845952 in words is "one billion, two hundred fifty-eight million, eight hundred forty-five thousand, nine hundred fifty-two".