39945958 has 32 divisors (see below), whose sum is σ = 66777984. Its totient is φ = 17805312.

The previous prime is 39945953. The next prime is 39945967. The reversal of 39945958 is 85954993.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39945953) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118366 + ... + 118702.

It is an arithmetic number, because the mean of its divisors is an integer number (2086812).

Almost surely, 2^39945958 is an apocalyptic number.

39945958 is a deficient number, since it is larger than the sum of its proper divisors (26832026).

39945958 is a wasteful number, since it uses less digits than its factorization.

39945958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496.

The product of its digits is 1749600, while the sum is 52.

The square root of 39945958 is about 6320.2814810734. The cubic root of 39945958 is about 341.8411023879.

The spelling of 39945958 in words is "thirty-nine million, nine hundred forty-five thousand, nine hundred fifty-eight".