73988380 has 48 divisors (see below), whose sum is σ = 160110720. Its totient is φ = 28703808.

The previous prime is 73988377. The next prime is 73988389. The reversal of 73988380 is 8388937.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 73988380.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73988389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 195031 + ... + 195409.

It is an arithmetic number, because the mean of its divisors is an integer number (3335640).

Almost surely, 2^73988380 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 73988380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80055360).

73988380 is an abundant number, since it is smaller than the sum of its proper divisors (86122340).

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

73988380 is a wasteful number, since it uses less digits than its factorization.

73988380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658 (or 656 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 73988380 is about 8601.6498417455. The cubic root of 73988380 is about 419.8116691541.

The spelling of 73988380 in words is "seventy-three million, nine hundred eighty-eight thousand, three hundred eighty".