491012724 has 48 divisors (see below), whose sum is σ = 1157532992. Its totient is φ = 161989632.

The previous prime is 491012701. The next prime is 491012737. The reversal of 491012724 is 427210194.

It is a junction number, because it is equal to n+sod(n) for n = 491012691 and 491012700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 729252 + ... + 729924.

Almost surely, 2^491012724 is an apocalyptic number.

It is an amenable number.

491012724 is an abundant number, since it is smaller than the sum of its proper divisors (666520268).

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

491012724 is a wasteful number, since it uses less digits than its factorization.

491012724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1216 (or 1214 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 491012724 is about 22158.8069173410. The cubic root of 491012724 is about 788.9162750645.

The spelling of 491012724 in words is "four hundred ninety-one million, twelve thousand, seven hundred twenty-four".