72235474 has 4 divisors (see below), whose sum is σ = 108353214. Its totient is φ = 36117736.

The previous prime is 72235469. The next prime is 72235483. The reversal of 72235474 is 47453227.

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., 70812225 + 1423249 = 8415^2 + 1193^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18058867 + ... + 18058870.

Almost surely, 2^72235474 is an apocalyptic number.

72235474 is a deficient number, since it is larger than the sum of its proper divisors (36117740).

72235474 is a wasteful number, since it uses less digits than its factorization.

72235474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36117739.

The product of its digits is 47040, while the sum is 34.

The square root of 72235474 is about 8499.1454864592. The cubic root of 72235474 is about 416.4697948520.

The spelling of 72235474 in words is "seventy-two million, two hundred thirty-five thousand, four hundred seventy-four".