73813280 has 24 divisors (see below), whose sum is σ = 174384252. Its totient is φ = 29525248.

The previous prime is 73813249. The next prime is 73813291. The reversal of 73813280 is 8231837.

It can be written as a sum of positive squares in 2 ways, for example, as 73753744 + 59536 = 8588^2 + 244^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230507 + ... + 230826.

Almost surely, 2^73813280 is an apocalyptic number.

It is an amenable number.

73813280 is an abundant number, since it is smaller than the sum of its proper divisors (100570972).

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

73813280 is a wasteful number, since it uses less digits than its factorization.

73813280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461348 (or 461340 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 73813280 is about 8591.4655327249. The cubic root of 73813280 is about 419.4802338299.

The spelling of 73813280 in words is "seventy-three million, eight hundred thirteen thousand, two hundred eighty".