38725240 has 64 divisors (see below), whose sum is σ = 90396000. Its totient is φ = 14922240.

The previous prime is 38725223. The next prime is 38725243. The reversal of 38725240 is 4252783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38725243) 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, 143826 + ... + 144094.

Almost surely, 2^38725240 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 38725240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45198000).

38725240 is an abundant number, since it is smaller than the sum of its proper divisors (51670760).

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

38725240 is a wasteful number, since it uses less digits than its factorization.

38725240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400 (or 396 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 38725240 is about 6222.9607101443. The cubic root of 38725240 is about 338.3228827583.

The spelling of 38725240 in words is "thirty-eight million, seven hundred twenty-five thousand, two hundred forty".