39749312 has 14 divisors (see below), whose sum is σ = 78877668. Its totient is φ = 19874624.

The previous prime is 39749293. The next prime is 39749321. The reversal of 39749312 is 21394793.

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 as a sum of consecutive naturals, namely, 310478 + ... + 310605.

Almost surely, 2^39749312 is an apocalyptic number.

39749312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

39749312 is a deficient number, since it is larger than the sum of its proper divisors (39128356).

39749312 is an equidigital number, since it uses as much as digits as its factorization.

39749312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621095 (or 621085 counting only the distinct ones).

The product of its digits is 40824, while the sum is 38.

The square root of 39749312 is about 6304.7055442741. The cubic root of 39749312 is about 341.2792408314.

The spelling of 39749312 in words is "thirty-nine million, seven hundred forty-nine thousand, three hundred twelve".