72403474 has 16 divisors (see below), whose sum is σ = 127592640. Its totient is φ = 30378960.

The previous prime is 72403447. The next prime is 72403501. The reversal of 72403474 is 47430427.

It is an interprime number because it is at equal distance from previous prime (72403447) and next prime (72403501).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126294 + ... + 126865.

It is an arithmetic number, because the mean of its divisors is an integer number (7974540).

Almost surely, 2^72403474 is an apocalyptic number.

72403474 is a deficient number, since it is larger than the sum of its proper divisors (55189166).

72403474 is a wasteful number, since it uses less digits than its factorization.

72403474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253185.

The product of its (nonzero) digits is 18816, while the sum is 31.

The square root of 72403474 is about 8509.0230931641. The cubic root of 72403474 is about 416.7924099067.

The spelling of 72403474 in words is "seventy-two million, four hundred three thousand, four hundred seventy-four".