72464554 has 8 divisors (see below), whose sum is σ = 108732960. Its totient is φ = 36220236.

The previous prime is 72464551. The next prime is 72464629. The reversal of 72464554 is 45546427.

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

It is a super-2 number, since 2×72464554² = 10502223172837832, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72464551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8677 + ... + 14839.

It is an arithmetic number, because the mean of its divisors is an integer number (13591620).

Almost surely, 2^72464554 is an apocalyptic number.

72464554 is a deficient number, since it is larger than the sum of its proper divisors (36268406).

72464554 is a wasteful number, since it uses less digits than its factorization.

72464554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12044.

The product of its digits is 134400, while the sum is 37.

The square root of 72464554 is about 8512.6114676990. The cubic root of 72464554 is about 416.9095798139.

The spelling of 72464554 in words is "seventy-two million, four hundred sixty-four thousand, five hundred fifty-four".