72378026 has 32 divisors (see below), whose sum is σ = 131120640. Its totient is φ = 29304576.

The previous prime is 72378017. The next prime is 72378037. The reversal of 72378026 is 62087327.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17186 + ... + 20978.

It is an arithmetic number, because the mean of its divisors is an integer number (4097520).

Almost surely, 2^72378026 is an apocalyptic number.

72378026 is a deficient number, since it is larger than the sum of its proper divisors (58742614).

72378026 is a wasteful number, since it uses less digits than its factorization.

72378026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3878.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 72378026 is about 8507.5276079482. The cubic root of 72378026 is about 416.7435735017.

The spelling of 72378026 in words is "seventy-two million, three hundred seventy-eight thousand, twenty-six".