72304054 has 4 divisors (see below), whose sum is σ = 108456084. Its totient is φ = 36152026.

The previous prime is 72303991. The next prime is 72304061. The reversal of 72304054 is 45040327.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45040327 = 17 ⋅2649431.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18076012 + ... + 18076015.

It is an arithmetic number, because the mean of its divisors is an integer number (27114021).

Almost surely, 2^72304054 is an apocalyptic number.

72304054 is a deficient number, since it is larger than the sum of its proper divisors (36152030).

72304054 is a wasteful number, since it uses less digits than its factorization.

72304054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36152029.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 72304054 is about 8503.1790525662. The cubic root of 72304054 is about 416.6015512823.

The spelling of 72304054 in words is "seventy-two million, three hundred four thousand, fifty-four".