72473402 has 8 divisors (see below), whose sum is σ = 108755136. Its totient is φ = 36221692.

The previous prime is 72473399. The next prime is 72473413. The reversal of 72473402 is 20437427.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53 + ... + 12039.

It is an arithmetic number, because the mean of its divisors is an integer number (13594392).

Almost surely, 2^72473402 is an apocalyptic number.

72473402 is a deficient number, since it is larger than the sum of its proper divisors (36281734).

72473402 is a wasteful number, since it uses less digits than its factorization.

72473402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15012.

The product of its (nonzero) digits is 9408, while the sum is 29.

The square root of 72473402 is about 8513.1311513450. The cubic root of 72473402 is about 416.9265474928.

The spelling of 72473402 in words is "seventy-two million, four hundred seventy-three thousand, four hundred two".