39909652 has 12 divisors (see below), whose sum is σ = 73517920. Its totient is φ = 18904536.

The previous prime is 39909629. The next prime is 39909703. The reversal of 39909652 is 25690993.

It is a super-2 number, since 2×39909652² = 3185560645522208, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 39909599 and 39909608.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262488 + ... + 262639.

Almost surely, 2^39909652 is an apocalyptic number.

It is an amenable number.

39909652 is a deficient number, since it is larger than the sum of its proper divisors (33608268).

39909652 is a wasteful number, since it uses less digits than its factorization.

39909652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525150 (or 525148 counting only the distinct ones).

The product of its (nonzero) digits is 131220, while the sum is 43.

The square root of 39909652 is about 6317.4086459560. The cubic root of 39909652 is about 341.7375070508.

The spelling of 39909652 in words is "thirty-nine million, nine hundred nine thousand, six hundred fifty-two".