39007220 has 24 divisors (see below), whose sum is σ = 93617664. Its totient is φ = 13373856.

The previous prime is 39007219. The next prime is 39007223. The reversal of 39007220 is 2270093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39007223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139172 + ... + 139451.

It is an arithmetic number, because the mean of its divisors is an integer number (3900736).

Almost surely, 2^39007220 is an apocalyptic number.

It is an amenable number.

39007220 is an abundant number, since it is smaller than the sum of its proper divisors (54610444).

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

39007220 is a wasteful number, since it uses less digits than its factorization.

39007220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278639 (or 278637 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 39007220 is about 6245.5760342822. The cubic root of 39007220 is about 339.1420699731.

The spelling of 39007220 in words is "thirty-nine million, seven thousand, two hundred twenty".