73438506 has 24 divisors (see below), whose sum is σ = 160760964. Its totient is φ = 24226560.

The previous prime is 73438501. The next prime is 73438513. The reversal of 73438506 is 60583437.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 65367225 + 8071281 = 8085^2 + 2841^2 .

It is not an unprimeable number, because it can be changed into a prime (73438501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19285 + ... + 22776.

Almost surely, 2^73438506 is an apocalyptic number.

73438506 is an abundant number, since it is smaller than the sum of its proper divisors (87322458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73438506 is a wasteful number, since it uses less digits than its factorization.

73438506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42166 (or 42163 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 73438506 is about 8569.6269463729. The cubic root of 73438506 is about 418.7690830837.

The spelling of 73438506 in words is "seventy-three million, four hundred thirty-eight thousand, five hundred six".