73400090 has 8 divisors (see below), whose sum is σ = 132120180. Its totient is φ = 29360032.

The previous prime is 73400083. The next prime is 73400111. The reversal of 73400090 is 9000437.

It can be written as a sum of positive squares in 2 ways, for example, as 71182969 + 2217121 = 8437^2 + 1489^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3669995 + ... + 3670014.

Almost surely, 2^73400090 is an apocalyptic number.

73400090 is a deficient number, since it is larger than the sum of its proper divisors (58720090).

73400090 is a wasteful number, since it uses less digits than its factorization.

73400090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7340016.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 73400090 is about 8567.3852487209. The cubic root of 73400090 is about 418.6960503750.

The spelling of 73400090 in words is "seventy-three million, four hundred thousand, ninety".