72469238 has 4 divisors (see below), whose sum is σ = 108703860. Its totient is φ = 36234618.

The previous prime is 72469219. The next prime is 72469261. The reversal of 72469238 is 83296427.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83296427 = 167 ⋅498781.

It is a junction number, because it is equal to n+sod(n) for n = 72469195 and 72469204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18117308 + ... + 18117311.

It is an arithmetic number, because the mean of its divisors is an integer number (27175965).

Almost surely, 2^72469238 is an apocalyptic number.

72469238 is a deficient number, since it is larger than the sum of its proper divisors (36234622).

72469238 is a wasteful number, since it uses less digits than its factorization.

72469238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36234621.

The product of its digits is 145152, while the sum is 41.

The square root of 72469238 is about 8512.8865844671. The cubic root of 72469238 is about 416.9185624236.

The spelling of 72469238 in words is "seventy-two million, four hundred sixty-nine thousand, two hundred thirty-eight".