39972204 has 60 divisors (see below), whose sum is σ = 105563304. Its totient is φ = 13188096.

The previous prime is 39972197. The next prime is 39972209. The reversal of 39972204 is 40227993.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (39972209) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 34092 + ... + 35244.

Almost surely, 2^39972204 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 39972204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52781652).

39972204 is an abundant number, since it is smaller than the sum of its proper divisors (65591100).

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

39972204 is a wasteful number, since it uses less digits than its factorization.

39972204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1276 (or 1265 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 39972204 is about 6322.3574717031. The cubic root of 39972204 is about 341.9159534932.

The spelling of 39972204 in words is "thirty-nine million, nine hundred seventy-two thousand, two hundred four".