72416746 has 4 divisors (see below), whose sum is σ = 108625122. Its totient is φ = 36208372.

The previous prime is 72416737. The next prime is 72416759. The reversal of 72416746 is 64761427.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 53450721 + 18966025 = 7311^2 + 4355^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18104185 + ... + 18104188.

Almost surely, 2^72416746 is an apocalyptic number.

72416746 is a deficient number, since it is larger than the sum of its proper divisors (36208376).

72416746 is a wasteful number, since it uses less digits than its factorization.

72416746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36208375.

The product of its digits is 56448, while the sum is 37.

The square root of 72416746 is about 8509.8029354386. The cubic root of 72416746 is about 416.8178752175.

The spelling of 72416746 in words is "seventy-two million, four hundred sixteen thousand, seven hundred forty-six".