39945092 has 12 divisors (see below), whose sum is σ = 76258896. Its totient is φ = 18156840.

The previous prime is 39945091. The next prime is 39945119. The reversal of 39945092 is 29054993.

It is a super-2 number, since 2×39945092² = 3191220749776928, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (39945091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 453878 + ... + 453965.

It is an arithmetic number, because the mean of its divisors is an integer number (6354908).

Almost surely, 2^39945092 is an apocalyptic number.

It is an amenable number.

39945092 is a deficient number, since it is larger than the sum of its proper divisors (36313804).

39945092 is a wasteful number, since it uses less digits than its factorization.

39945092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907858 (or 907856 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 41.

The square root of 39945092 is about 6320.2129710952. The cubic root of 39945092 is about 341.8386320793.

The spelling of 39945092 in words is "thirty-nine million, nine hundred forty-five thousand, ninety-two".