72438154 has 8 divisors (see below), whose sum is σ = 108713088. Its totient is φ = 36200460.

The previous prime is 72438151. The next prime is 72438209. The reversal of 72438154 is 45183427.

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

It is not an unprimeable number, because it can be changed into a prime (72438151) 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, 3792 + ... + 12619.

It is an arithmetic number, because the mean of its divisors is an integer number (13589136).

Almost surely, 2^72438154 is an apocalyptic number.

72438154 is a deficient number, since it is larger than the sum of its proper divisors (36274934).

72438154 is a wasteful number, since it uses less digits than its factorization.

72438154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18620.

The product of its digits is 26880, while the sum is 34.

The square root of 72438154 is about 8511.0606859545. The cubic root of 72438154 is about 416.8589447141.

The spelling of 72438154 in words is "seventy-two million, four hundred thirty-eight thousand, one hundred fifty-four".