72462945 has 16 divisors (see below), whose sum is σ = 116969472. Its totient is φ = 38304000.

The previous prime is 72462919. The next prime is 72462991. The reversal of 72462945 is 54926427.

It is not a de Polignac number, because 72462945 - 2¹⁷ = 72331873 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19681 + ... + 23070.

It is an arithmetic number, because the mean of its divisors is an integer number (7310592).

Almost surely, 2^72462945 is an apocalyptic number.

It is an amenable number.

72462945 is a deficient number, since it is larger than the sum of its proper divisors (44506527).

72462945 is a wasteful number, since it uses less digits than its factorization.

72462945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42872.

The product of its digits is 120960, while the sum is 39.

The square root of 72462945 is about 8512.5169603355. The cubic root of 72462945 is about 416.9064941100.

The spelling of 72462945 in words is "seventy-two million, four hundred sixty-two thousand, nine hundred forty-five".