38397392 has 40 divisors (see below), whose sum is σ = 83967840. Its totient is φ = 16849280.

The previous prime is 38397391. The next prime is 38397413. The reversal of 38397392 is 29379383.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38397391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1343 + ... + 8865.

It is an arithmetic number, because the mean of its divisors is an integer number (2099196).

Almost surely, 2^38397392 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 38397392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41983920).

38397392 is an abundant number, since it is smaller than the sum of its proper divisors (45570448).

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

38397392 is a wasteful number, since it uses less digits than its factorization.

38397392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7571 (or 7565 counting only the distinct ones).

The product of its digits is 244944, while the sum is 44.

The square root of 38397392 is about 6196.5629182636. The cubic root of 38397392 is about 337.3654281964.

Subtracting from 38397392 its reverse (29379383), we obtain a square (9018009 = 3003²).

The spelling of 38397392 in words is "thirty-eight million, three hundred ninety-seven thousand, three hundred ninety-two".