72938378 has 8 divisors (see below), whose sum is σ = 115165920. Its totient is φ = 34549740.

The previous prime is 72938377. The next prime is 72938401. The reversal of 72938378 is 87383927.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (72938377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 959678 + ... + 959753.

It is an arithmetic number, because the mean of its divisors is an integer number (14395740).

Almost surely, 2^72938378 is an apocalyptic number.

72938378 is a deficient number, since it is larger than the sum of its proper divisors (42227542).

72938378 is a wasteful number, since it uses less digits than its factorization.

72938378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1919452.

The product of its digits is 508032, while the sum is 47.

The square root of 72938378 is about 8540.3968291877. The cubic root of 72938378 is about 417.8162887066.

The spelling of 72938378 in words is "seventy-two million, nine hundred thirty-eight thousand, three hundred seventy-eight".