39229872 has 80 divisors (see below), whose sum is σ = 111421440. Its totient is φ = 11795200.

The previous prime is 39229859. The next prime is 39229873. The reversal of 39229872 is 27892293.

It is not an unprimeable number, because it can be changed into a prime (39229873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100654 + ... + 101042.

It is an arithmetic number, because the mean of its divisors is an integer number (1392768).

Almost surely, 2^39229872 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 39229872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55710720).

39229872 is an abundant number, since it is smaller than the sum of its proper divisors (72191568).

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

39229872 is a wasteful number, since it uses less digits than its factorization.

39229872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602 (or 596 counting only the distinct ones).

The product of its digits is 108864, while the sum is 42.

The square root of 39229872 is about 6263.3754477917. The cubic root of 39229872 is about 339.7861169230.

The spelling of 39229872 in words is "thirty-nine million, two hundred twenty-nine thousand, eight hundred seventy-two".