73722380 has 12 divisors (see below), whose sum is σ = 154817040. Its totient is φ = 29488944.

The previous prime is 73722377. The next prime is 73722391. The reversal of 73722380 is 8322737.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1843040 + ... + 1843079.

It is an arithmetic number, because the mean of its divisors is an integer number (12901420).

Almost surely, 2^73722380 is an apocalyptic number.

It is an amenable number.

73722380 is an abundant number, since it is smaller than the sum of its proper divisors (81094660).

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

73722380 is a wasteful number, since it uses less digits than its factorization.

73722380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3686128 (or 3686126 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 73722380 is about 8586.1737694971. The cubic root of 73722380 is about 419.3079684576.

The spelling of 73722380 in words is "seventy-three million, seven hundred twenty-two thousand, three hundred eighty".