72038400 has 288 divisors, whose sum is σ = 276232320. Its totient is φ = 16220160.

The previous prime is 72038399. The next prime is 72038413. The reversal of 72038400 is 483027.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1075167 + ... + 1075233.

It is an arithmetic number, because the mean of its divisors is an integer number (959140).

Almost surely, 2^72038400 is an apocalyptic number.

72038400 is a gapful number since it is divisible by the number (70) 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 72038400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138116160).

72038400 is an abundant number, since it is smaller than the sum of its proper divisors (204193920).

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

72038400 is a wasteful number, since it uses less digits than its factorization.

72038400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 72038400 is about 8487.5438143199. The cubic root of 72038400 is about 416.0907100020.

The spelling of 72038400 in words is "seventy-two million, thirty-eight thousand, four hundred".