72378488 has 64 divisors (see below), whose sum is σ = 170520000. Its totient is φ = 28619136.

The previous prime is 72378463. The next prime is 72378491. The reversal of 72378488 is 88487327.

It is a happy number.

It is a super-2 number, since 2×72378488² = 10477291050332288, which contains 22 as substring.

It is a nialpdrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34658 + ... + 36686.

It is an arithmetic number, because the mean of its divisors is an integer number (2664375).

Almost surely, 2^72378488 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 72378488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85260000).

72378488 is an abundant number, since it is smaller than the sum of its proper divisors (98141512).

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

72378488 is a wasteful number, since it uses less digits than its factorization.

72378488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2069 (or 2051 counting only the distinct ones).

The product of its digits is 602112, while the sum is 47.

The square root of 72378488 is about 8507.5547603292. The cubic root of 72378488 is about 416.7444602125.

The spelling of 72378488 in words is "seventy-two million, three hundred seventy-eight thousand, four hundred eighty-eight".