73662990 has 32 divisors (see below), whose sum is σ = 179693856. Its totient is φ = 19320960.

The previous prime is 73662931. The next prime is 73663033. The reversal of 73662990 is 9926637.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18297 + ... + 21956.

It is an arithmetic number, because the mean of its divisors is an integer number (5615433).

Almost surely, 2^73662990 is an apocalyptic number.

73662990 is an abundant number, since it is smaller than the sum of its proper divisors (106030866).

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

73662990 is a wasteful number, since it uses less digits than its factorization.

73662990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40324.

The product of its (nonzero) digits is 122472, while the sum is 42.

The square root of 73662990 is about 8582.7146055313. The cubic root of 73662990 is about 419.1953414627.

The spelling of 73662990 in words is "seventy-three million, six hundred sixty-two thousand, nine hundred ninety".