72438358 has 8 divisors (see below), whose sum is σ = 109673352. Its totient is φ = 35880576.

The previous prime is 72438347. The next prime is 72438397. The reversal of 72438358 is 85383427.

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

It is a self number, because there is not a number n which added to its sum of digits gives 72438358.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 169035 + ... + 169462.

It is an arithmetic number, because the mean of its divisors is an integer number (13709169).

Almost surely, 2^72438358 is an apocalyptic number.

72438358 is a deficient number, since it is larger than the sum of its proper divisors (37234994).

72438358 is a wasteful number, since it uses less digits than its factorization.

72438358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338606.

The product of its digits is 161280, while the sum is 40.

The square root of 72438358 is about 8511.0726703513. The cubic root of 72438358 is about 416.8593360325.

The spelling of 72438358 in words is "seventy-two million, four hundred thirty-eight thousand, three hundred fifty-eight".