73454990 has 64 divisors (see below), whose sum is σ = 157593600. Its totient is φ = 24126336.

The previous prime is 73454987. The next prime is 73455013. The reversal of 73454990 is 9945437.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 204431 + ... + 204789.

It is an arithmetic number, because the mean of its divisors is an integer number (2462400).

Almost surely, 2^73454990 is an apocalyptic number.

73454990 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

73454990 is an abundant number, since it is smaller than the sum of its proper divisors (84138610).

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

73454990 is a wasteful number, since it uses less digits than its factorization.

73454990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 73454990 is about 8570.5886612298. The cubic root of 73454990 is about 418.8004130291.

The spelling of 73454990 in words is "seventy-three million, four hundred fifty-four thousand, nine hundred ninety".