1002089412 has 72 divisors (see below), whose sum is σ = 2823256800. Its totient is φ = 297831168.

The previous prime is 1002089401. The next prime is 1002089449. The reversal of 1002089412 is 2149802001.

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, 31462 + ... + 54717.

It is an arithmetic number, because the mean of its divisors is an integer number (39211900).

Almost surely, 2^1002089412 is an apocalyptic number.

1002089412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1002089412 is an abundant number, since it is smaller than the sum of its proper divisors (1821167388).

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

1002089412 is a wasteful number, since it uses less digits than its factorization.

1002089412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86225 (or 86220 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 1002089412 is about 31655.7958674237. The cubic root of 1002089412 is about 1000.6959861576.

The spelling of 1002089412 in words is "one billion, two million, eighty-nine thousand, four hundred twelve".