73685380 has 24 divisors (see below), whose sum is σ = 154911960. Its totient is φ = 29441280.

The previous prime is 73685369. The next prime is 73685383. The reversal of 73685380 is 8358637.

It can be written as a sum of positive squares in 4 ways, for example, as 26378496 + 47306884 = 5136^2 + 6878^2 .

It is a hoax number, since the sum of its digits (40) 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 (73685383) 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, 25026 + ... + 27814.

It is an arithmetic number, because the mean of its divisors is an integer number (6454665).

Almost surely, 2^73685380 is an apocalyptic number.

It is an amenable number.

73685380 is an abundant number, since it is smaller than the sum of its proper divisors (81226580).

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

73685380 is a wasteful number, since it uses less digits than its factorization.

73685380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4119 (or 4117 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 73685380 is about 8584.0188722999. The cubic root of 73685380 is about 419.2378088895.

The spelling of 73685380 in words is "seventy-three million, six hundred eighty-five thousand, three hundred eighty".