72438498 has 24 divisors (see below), whose sum is σ = 171218736. Its totient is φ = 21951000.

The previous prime is 72438481. The next prime is 72438511. The reversal of 72438498 is 89483427.

It is a Curzon number.

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 11 ways as a sum of consecutive naturals, for example, 182728 + ... + 183123.

It is an arithmetic number, because the mean of its divisors is an integer number (7134114).

Almost surely, 2^72438498 is an apocalyptic number.

72438498 is an abundant number, since it is smaller than the sum of its proper divisors (98780238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72438498 is a wasteful number, since it uses less digits than its factorization.

72438498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365870 (or 365867 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 72438498 is about 8511.0808949275. The cubic root of 72438498 is about 416.8596045839.

The spelling of 72438498 in words is "seventy-two million, four hundred thirty-eight thousand, four hundred ninety-eight".