491404012 has 12 divisors (see below), whose sum is σ = 938135016. Its totient is φ = 223365440.

The previous prime is 491404007. The next prime is 491404103. The reversal of 491404012 is 210404194.

It is a super-2 number, since 2×491404012² = 482955806019392288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5584093 + ... + 5584180.

It is an arithmetic number, because the mean of its divisors is an integer number (78177918).

Almost surely, 2^491404012 is an apocalyptic number.

It is an amenable number.

491404012 is a deficient number, since it is larger than the sum of its proper divisors (446731004).

491404012 is a wasteful number, since it uses less digits than its factorization.

491404012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11168288 (or 11168286 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 491404012 is about 22167.6343347683. The cubic root of 491404012 is about 789.1257818609.

The spelling of 491404012 in words is "four hundred ninety-one million, four hundred four thousand, twelve".