3491720572 has 12 divisors (see below), whose sum is σ = 6252616216. Its totient is φ = 1705258800.

The previous prime is 3491720567. The next prime is 3491720579. The reversal of 3491720572 is 2750271943.

It is a super-2 number, since 2×3491720572² = 24384225105856014368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3491720579) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10150179 + ... + 10150522.

Almost surely, 2^3491720572 is an apocalyptic number.

It is an amenable number.

3491720572 is a deficient number, since it is larger than the sum of its proper divisors (2760895644).

3491720572 is a wasteful number, since it uses less digits than its factorization.

3491720572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20300748 (or 20300746 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 3491720572 is about 59090.7824622419. The cubic root of 3491720572 is about 1517.0963397411.

The spelling of 3491720572 in words is "three billion, four hundred ninety-one million, seven hundred twenty thousand, five hundred seventy-two".