72433234 has 4 divisors (see below), whose sum is σ = 108649854. Its totient is φ = 36216616.

The previous prime is 72433219. The next prime is 72433237. The reversal of 72433234 is 43233427.

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., 47403225 + 25030009 = 6885^2 + 5003^2 .

It is not an unprimeable number, because it can be changed into a prime (72433237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18108307 + ... + 18108310.

Almost surely, 2^72433234 is an apocalyptic number.

72433234 is a deficient number, since it is larger than the sum of its proper divisors (36216620).

72433234 is a wasteful number, since it uses less digits than its factorization.

72433234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36216619.

The product of its digits is 12096, while the sum is 28.

The square root of 72433234 is about 8510.7716453915. The cubic root of 72433234 is about 416.8495068128.

The spelling of 72433234 in words is "seventy-two million, four hundred thirty-three thousand, two hundred thirty-four".