73548820 has 12 divisors (see below), whose sum is σ = 154452564. Its totient is φ = 29419520.

The previous prime is 73548803. The next prime is 73548823. The reversal of 73548820 is 2884537.

It can be written as a sum of positive squares in 2 ways, for example, as 24940036 + 48608784 = 4994^2 + 6972^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 73548820.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73548823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1838701 + ... + 1838740.

It is an arithmetic number, because the mean of its divisors is an integer number (12871047).

Almost surely, 2^73548820 is an apocalyptic number.

It is an amenable number.

73548820 is an abundant number, since it is smaller than the sum of its proper divisors (80903744).

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

73548820 is a wasteful number, since it uses less digits than its factorization.

73548820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3677450 (or 3677448 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 73548820 is about 8576.0608673213. The cubic root of 73548820 is about 418.9786597015.

The spelling of 73548820 in words is "seventy-three million, five hundred forty-eight thousand, eight hundred twenty".