39028040 has 16 divisors (see below), whose sum is σ = 87813180. Its totient is φ = 15611200.

The previous prime is 39028021. The next prime is 39028043. The reversal of 39028040 is 4082093.

It can be written as a sum of positive squares in 2 ways, for example, as 36699364 + 2328676 = 6058^2 + 1526^2 .

It is not an unprimeable number, because it can be changed into a prime (39028043) 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, 487811 + ... + 487890.

Almost surely, 2^39028040 is an apocalyptic number.

It is an amenable number.

39028040 is an abundant number, since it is smaller than the sum of its proper divisors (48785140).

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

39028040 is a wasteful number, since it uses less digits than its factorization.

39028040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975712 (or 975708 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 39028040 is about 6247.2425917360. The cubic root of 39028040 is about 339.2023979672.

The spelling of 39028040 in words is "thirty-nine million, twenty-eight thousand, forty".