73632436 has 6 divisors (see below), whose sum is σ = 128856770. Its totient is φ = 36816216.

The previous prime is 73632401. The next prime is 73632437. The reversal of 73632436 is 63423637.

It can be written as a sum of positive squares in only one way, i.e., 56160036 + 17472400 = 7494^2 + 4180^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73632437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9204051 + ... + 9204058.

Almost surely, 2^73632436 is an apocalyptic number.

It is an amenable number.

73632436 is a deficient number, since it is larger than the sum of its proper divisors (55224334).

73632436 is a wasteful number, since it uses less digits than its factorization.

73632436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18408113 (or 18408111 counting only the distinct ones).

The product of its digits is 54432, while the sum is 34.

The square root of 73632436 is about 8580.9344479491. The cubic root of 73632436 is about 419.1373753763.

The spelling of 73632436 in words is "seventy-three million, six hundred thirty-two thousand, four hundred thirty-six".