39225438 has 64 divisors (see below), whose sum is σ = 102090240. Its totient is φ = 10929600.

The previous prime is 39225413. The next prime is 39225457. The reversal of 39225438 is 83452293.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14233 + ... + 16763.

It is an arithmetic number, because the mean of its divisors is an integer number (1595160).

Almost surely, 2^39225438 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39225438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51045120).

39225438 is an abundant number, since it is smaller than the sum of its proper divisors (62864802).

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

39225438 is a wasteful number, since it uses less digits than its factorization.

39225438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2590 (or 2584 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 39225438 is about 6263.0214752945. The cubic root of 39225438 is about 339.7733148725.

The spelling of 39225438 in words is "thirty-nine million, two hundred twenty-five thousand, four hundred thirty-eight".