73500290 has 16 divisors (see below), whose sum is σ = 135528120. Its totient is φ = 28682880.

The previous prime is 73500277. The next prime is 73500311. The reversal of 73500290 is 9200537.

It can be written as a sum of positive squares in 4 ways, for example, as 21501769 + 51998521 = 4637^2 + 7211^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89225 + ... + 90044.

Almost surely, 2^73500290 is an apocalyptic number.

73500290 is a deficient number, since it is larger than the sum of its proper divisors (62027830).

73500290 is a wasteful number, since it uses less digits than its factorization.

73500290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179317.

The product of its (nonzero) digits is 1890, while the sum is 26.

The square root of 73500290 is about 8573.2310128679. The cubic root of 73500290 is about 418.8864873270.

The spelling of 73500290 in words is "seventy-three million, five hundred thousand, two hundred ninety".