73253380 has 24 divisors (see below), whose sum is σ = 155198232. Its totient is φ = 29041152.

The previous prime is 73253371. The next prime is 73253387. The reversal of 73253380 is 8335237.

It can be written as a sum of positive squares in 4 ways, for example, as 4064256 + 69189124 = 2016^2 + 8318^2 .

It is not an unprimeable number, because it can be changed into a prime (73253387) 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, 13947 + ... + 18466.

It is an arithmetic number, because the mean of its divisors is an integer number (6466593).

Almost surely, 2^73253380 is an apocalyptic number.

It is an amenable number.

73253380 is an abundant number, since it is smaller than the sum of its proper divisors (81944852).

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

73253380 is a wasteful number, since it uses less digits than its factorization.

73253380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32535 (or 32533 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 73253380 is about 8558.8188437424. The cubic root of 73253380 is about 418.4169050808.

The spelling of 73253380 in words is "seventy-three million, two hundred fifty-three thousand, three hundred eighty".