39220480 has 72 divisors (see below), whose sum is σ = 101214792. Its totient is φ = 14475264.

The previous prime is 39220463. The next prime is 39220523. The reversal of 39220480 is 8402293.

It can be written as a sum of positive squares in 4 ways, for example, as 82944 + 39137536 = 288^2 + 6256^2 .

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 15462 + ... + 17818.

It is an arithmetic number, because the mean of its divisors is an integer number (1405761).

Almost surely, 2^39220480 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39220480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50607396).

39220480 is an abundant number, since it is smaller than the sum of its proper divisors (61994312).

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

39220480 is a wasteful number, since it uses less digits than its factorization.

39220480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2391 (or 2377 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 39220480 is about 6262.6256474421. The cubic root of 39220480 is about 339.7589987623.

The spelling of 39220480 in words is "thirty-nine million, two hundred twenty thousand, four hundred eighty".