239985648 has 60 divisors (see below), whose sum is σ = 767576368. Its totient is φ = 68567040.

The previous prime is 239985607. The next prime is 239985653. The reversal of 239985648 is 846589932.

It is a super-2 number, since 2×239985648² = 115186222491959808, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 239985594 and 239985603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 118033 + ... + 120048.

Almost surely, 2^239985648 is an apocalyptic number.

239985648 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

239985648 is an abundant number, since it is smaller than the sum of its proper divisors (527590720).

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

239985648 is a wasteful number, since it uses less digits than its factorization.

239985648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238102 (or 238093 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 54.

The square root of 239985648 is about 15491.4701690963. The cubic root of 239985648 is about 621.4341134436.

It can be divided in two parts, 23998 and 5648, that added together give a triangular number (29646 = T₂₄₃).

The spelling of 239985648 in words is "two hundred thirty-nine million, nine hundred eighty-five thousand, six hundred forty-eight".