73244864 has 112 divisors (see below), whose sum is σ = 184343040. Its totient is φ = 28047360.

The previous prime is 73244863. The next prime is 73244893. The reversal of 73244864 is 46844237.

It is a tau number, because it is divible by the number of its divisors (112).

It is not an unprimeable number, because it can be changed into a prime (73244861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 438509 + ... + 438675.

It is an arithmetic number, because the mean of its divisors is an integer number (1645920).

Almost surely, 2^73244864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73244864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92171520).

73244864 is an abundant number, since it is smaller than the sum of its proper divisors (111098176).

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

73244864 is a wasteful number, since it uses less digits than its factorization.

73244864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286 (or 276 counting only the distinct ones).

The product of its digits is 129024, while the sum is 38.

The square root of 73244864 is about 8558.3213307284. The cubic root of 73244864 is about 418.4006902365.

The spelling of 73244864 in words is "seventy-three million, two hundred forty-four thousand, eight hundred sixty-four".