38697472 has 40 divisors (see below), whose sum is σ = 84360672. Its totient is φ = 17587200.

The previous prime is 38697437. The next prime is 38697479. The reversal of 38697472 is 27479683.

It is not an unprimeable number, because it can be changed into a prime (38697479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2197 + ... + 9067.

Almost surely, 2^38697472 is an apocalyptic number.

38697472 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38697472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42180336).

38697472 is an abundant number, since it is smaller than the sum of its proper divisors (45663200).

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

38697472 is an equidigital number, since it uses as much as digits as its factorization.

38697472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6900 (or 6884 counting only the distinct ones).

The product of its digits is 508032, while the sum is 46.

The square root of 38697472 is about 6220.7292177043. The cubic root of 38697472 is about 338.2419984207.

The spelling of 38697472 in words is "thirty-eight million, six hundred ninety-seven thousand, four hundred seventy-two".