72474406 has 8 divisors (see below), whose sum is σ = 108819360. Its totient is φ = 36201288.

The previous prime is 72474401. The next prime is 72474431. The reversal of 72474406 is 60447427.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72474401) 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, 15361 + ... + 19516.

It is an arithmetic number, because the mean of its divisors is an integer number (13602420).

Almost surely, 2^72474406 is an apocalyptic number.

72474406 is a deficient number, since it is larger than the sum of its proper divisors (36344954).

72474406 is a wasteful number, since it uses less digits than its factorization.

72474406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35918.

The product of its (nonzero) digits is 37632, while the sum is 34.

The square root of 72474406 is about 8513.1901188685. The cubic root of 72474406 is about 416.9284727615.

The spelling of 72474406 in words is "seventy-two million, four hundred seventy-four thousand, four hundred six".