1252928880 has 120 divisors (see below), whose sum is σ = 4808879712. Its totient is φ = 286382592.

The previous prime is 1252928839. The next prime is 1252928939. The reversal of 1252928880 is 888292521.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 119259 + ... + 129338.

Almost surely, 2^1252928880 is an apocalyptic number.

1252928880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1252928880 is an abundant number, since it is smaller than the sum of its proper divisors (3555950832).

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

1252928880 is a wasteful number, since it uses less digits than its factorization.

1252928880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248623 (or 248614 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 45.

The square root of 1252928880 is about 35396.7354426930. The cubic root of 1252928880 is about 1078.0580328411.

The spelling of 1252928880 in words is "one billion, two hundred fifty-two million, nine hundred twenty-eight thousand, eight hundred eighty".