39051940 has 24 divisors (see below), whose sum is σ = 84655872. Its totient is φ = 15116640.

The previous prime is 39051931. The next prime is 39051977. The reversal of 39051940 is 4915093.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30874 + ... + 32113.

It is an arithmetic number, because the mean of its divisors is an integer number (3527328).

Almost surely, 2^39051940 is an apocalyptic number.

It is an amenable number.

39051940 is an abundant number, since it is smaller than the sum of its proper divisors (45603932).

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

39051940 is a wasteful number, since it uses less digits than its factorization.

39051940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63027 (or 63025 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 39051940 is about 6249.1551428973. The cubic root of 39051940 is about 339.2716241187.

The spelling of 39051940 in words is "thirty-nine million, fifty-one thousand, nine hundred forty".