72432914 has 4 divisors (see below), whose sum is σ = 108649374. Its totient is φ = 36216456.

The previous prime is 72432889. The next prime is 72432953. The reversal of 72432914 is 41923427.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 71149225 + 1283689 = 8435^2 + 1133^2 .

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 as a sum of consecutive naturals, namely, 18108227 + ... + 18108230.

Almost surely, 2^72432914 is an apocalyptic number.

72432914 is a deficient number, since it is larger than the sum of its proper divisors (36216460).

72432914 is a wasteful number, since it uses less digits than its factorization.

72432914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36216459.

The product of its digits is 12096, while the sum is 32.

The square root of 72432914 is about 8510.7528456653. The cubic root of 72432914 is about 416.8488929508.

The spelling of 72432914 in words is "seventy-two million, four hundred thirty-two thousand, nine hundred fourteen".