240639796 has 12 divisors (see below), whose sum is σ = 435641220. Its totient is φ = 116170880.

The previous prime is 240639793. The next prime is 240639829. The reversal of 240639796 is 697936042.

It can be written as a sum of positive squares in 2 ways, for example, as 175191696 + 65448100 = 13236^2 + 8090^2 .

It is a super-2 number, since 2×240639796² = 115815022837843232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240639793) 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, 1037125 + ... + 1037356.

It is an arithmetic number, because the mean of its divisors is an integer number (36303435).

Almost surely, 2^240639796 is an apocalyptic number.

It is an amenable number.

240639796 is a deficient number, since it is larger than the sum of its proper divisors (195001424).

240639796 is a wasteful number, since it uses less digits than its factorization.

240639796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2074514 (or 2074512 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 46.

The square root of 240639796 is about 15512.5689684204. The cubic root of 240639796 is about 621.9982320232.

The spelling of 240639796 in words is "two hundred forty million, six hundred thirty-nine thousand, seven hundred ninety-six".