72174338 has 8 divisors (see below), whose sum is σ = 108683532. Its totient is φ = 35946496.

The previous prime is 72174337. The next prime is 72174353. The reversal of 72174338 is 83347127.

It can be written as a sum of positive squares in 2 ways, for example, as 56595529 + 15578809 = 7523^2 + 3947^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 72174298 and 72174307.

It is not an unprimeable number, because it can be changed into a prime (72174337) 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, 69695 + ... + 70722.

Almost surely, 2^72174338 is an apocalyptic number.

72174338 is a deficient number, since it is larger than the sum of its proper divisors (36509194).

72174338 is a wasteful number, since it uses less digits than its factorization.

72174338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140676.

The product of its digits is 28224, while the sum is 35.

The square root of 72174338 is about 8495.5481282846. The cubic root of 72174338 is about 416.3522695682.

The spelling of 72174338 in words is "seventy-two million, one hundred seventy-four thousand, three hundred thirty-eight".