39243136 has 16 divisors (see below), whose sum is σ = 78179940. Its totient is φ = 19621504.

The previous prime is 39243107. The next prime is 39243137. The reversal of 39243136 is 63134293.

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×39243136² = 3080047446228992, which contains 22 as substring.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 39243098 and 39243107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39243137) by changing a digit.

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 as a sum of consecutive naturals, namely, 153166 + ... + 153421.

Almost surely, 2^39243136 is an apocalyptic number.

It is an amenable number.

39243136 is a deficient number, since it is larger than the sum of its proper divisors (38936804).

39243136 is an equidigital number, since it uses as much as digits as its factorization.

39243136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306601 (or 306589 counting only the distinct ones).

The product of its digits is 11664, while the sum is 31.

The square root of 39243136 is about 6264.4342122813. The cubic root of 39243136 is about 339.8244076011.

The spelling of 39243136 in words is "thirty-nine million, two hundred forty-three thousand, one hundred thirty-six".