39946788 has 36 divisors (see below), whose sum is σ = 115402560. Its totient is φ = 11413296.

The previous prime is 39946783. The next prime is 39946853. The reversal of 39946788 is 88764993.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (39946783) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79008 + ... + 79511.

Almost surely, 2^39946788 is an apocalyptic number.

It is an amenable number.

39946788 is an abundant number, since it is smaller than the sum of its proper divisors (75455772).

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

39946788 is a wasteful number, since it uses less digits than its factorization.

39946788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158536 (or 158531 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 39946788 is about 6320.3471423649. The cubic root of 39946788 is about 341.8434699712.

The spelling of 39946788 in words is "thirty-nine million, nine hundred forty-six thousand, seven hundred eighty-eight".