3240999972 has 48 divisors (see below), whose sum is σ = 9602965120. Its totient is φ = 925999776.

The previous prime is 3240999947. The next prime is 3240999973. The reversal of 3240999972 is 2799990423.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (3240999973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2142763 + ... + 2144274.

Almost surely, 2^3240999972 is an apocalyptic number.

It is an amenable number.

3240999972 is an abundant number, since it is smaller than the sum of its proper divisors (6361965148).

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

3240999972 is a wasteful number, since it uses less digits than its factorization.

3240999972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4287057 (or 4287049 counting only the distinct ones).

The product of its (nonzero) digits is 2204496, while the sum is 54.

The square root of 3240999972 is about 56929.7810640442. The cubic root of 3240999972 is about 1479.8794599904.

The spelling of 3240999972 in words is "three billion, two hundred forty million, nine hundred ninety-nine thousand, nine hundred seventy-two".