73408536 has 24 divisors (see below), whose sum is σ = 198814980. Its totient is φ = 24469488.

The previous prime is 73408523. The next prime is 73408537. The reversal of 73408536 is 63580437.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 73408536.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73408537) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 509710 + ... + 509853.

Almost surely, 2^73408536 is an apocalyptic number.

It is an amenable number.

73408536 is an abundant number, since it is smaller than the sum of its proper divisors (125406444).

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

73408536 is a wasteful number, since it uses less digits than its factorization.

73408536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019575 (or 1019568 counting only the distinct ones).

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

The square root of 73408536 is about 8567.8781503941. The cubic root of 73408536 is about 418.7121092618.

It can be divided in two parts, 7340 and 8536, that added together give a square (15876 = 126²).

The spelling of 73408536 in words is "seventy-three million, four hundred eight thousand, five hundred thirty-six".