39946912 has 12 divisors (see below), whose sum is σ = 78645546. Its totient is φ = 19973440.

The previous prime is 39946909. The next prime is 39946913. The reversal of 39946912 is 21964993.

It can be written as a sum of positive squares in only one way, i.e., 29986576 + 9960336 = 5476^2 + 3156^2 .

It is not an unprimeable number, because it can be changed into a prime (39946913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 624139 + ... + 624202.

Almost surely, 2^39946912 is an apocalyptic number.

39946912 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

39946912 is a deficient number, since it is larger than the sum of its proper divisors (38698634).

39946912 is a wasteful number, since it uses less digits than its factorization.

39946912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248351 (or 1248343 counting only the distinct ones).

The product of its digits is 104976, while the sum is 43.

The square root of 39946912 is about 6320.3569519450. The cubic root of 39946912 is about 341.8438236796.

The spelling of 39946912 in words is "thirty-nine million, nine hundred forty-six thousand, nine hundred twelve".