73574980 has 24 divisors (see below), whose sum is σ = 163596888. Its totient is φ = 27698688.

The previous prime is 73574909. The next prime is 73574989. The reversal of 73574980 is 8947537.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 24462916 + 49112064 = 4946^2 + 7008^2 .

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (73574989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107859 + ... + 108538.

It is an arithmetic number, because the mean of its divisors is an integer number (6816537).

Almost surely, 2^73574980 is an apocalyptic number.

It is an amenable number.

73574980 is an abundant number, since it is smaller than the sum of its proper divisors (90021908).

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

73574980 is a wasteful number, since it uses less digits than its factorization.

73574980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216423 (or 216421 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 43.

The square root of 73574980 is about 8577.5859074684. The cubic root of 73574980 is about 419.0283282188.

The spelling of 73574980 in words is "seventy-three million, five hundred seventy-four thousand, nine hundred eighty".