73512232 has 16 divisors (see below), whose sum is σ = 143828640. Its totient is φ = 35157936.

The previous prime is 73512227. The next prime is 73512239. The reversal of 73512232 is 23221537.

It is a junction number, because it is equal to n+sod(n) for n = 73512197 and 73512206.

It is not an unprimeable number, because it can be changed into a prime (73512239) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 199578 + ... + 199945.

It is an arithmetic number, because the mean of its divisors is an integer number (8989290).

Almost surely, 2^73512232 is an apocalyptic number.

It is an amenable number.

73512232 is a deficient number, since it is larger than the sum of its proper divisors (70316408).

73512232 is a wasteful number, since it uses less digits than its factorization.

73512232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399552 (or 399548 counting only the distinct ones).

The product of its digits is 2520, while the sum is 25.

The square root of 73512232 is about 8573.9274547899. The cubic root of 73512232 is about 418.9091723692.

Adding to 73512232 its reverse (23221537), we get a palindrome (96733769).

The spelling of 73512232 in words is "seventy-three million, five hundred twelve thousand, two hundred thirty-two".