1285079232 has 56 divisors (see below), whose sum is σ = 3600120816. Its totient is φ = 403161088.

The previous prime is 1285079219. The next prime is 1285079267. The reversal of 1285079232 is 2329705821.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193593 + ... + 200120.

Almost surely, 2^1285079232 is an apocalyptic number.

1285079232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1285079232 is an abundant number, since it is smaller than the sum of its proper divisors (2315041584).

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

1285079232 is a wasteful number, since it uses less digits than its factorization.

1285079232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393745 (or 393735 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 1285079232 is about 35848.0017853157. The cubic root of 1285079232 is about 1087.2013133478.

The spelling of 1285079232 in words is "one billion, two hundred eighty-five million, seventy-nine thousand, two hundred thirty-two".