74090 has 16 divisors (see below), whose sum is σ = 138240. Its totient is φ = 28560.

The previous prime is 74077. The next prime is 74093. The reversal of 74090 is 9047.

74090 = 73² + 74² + ... + 84².

It is not an unprimeable number, because it can be changed into a prime (74093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191 + ... + 429.

It is an arithmetic number, because the mean of its divisors is an integer number (8640).

2⁷⁴⁰⁹⁰ is an apocalyptic number.

74090 is a deficient number, since it is larger than the sum of its proper divisors (64150).

74090 is a wasteful number, since it uses less digits than its factorization.

74090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 74090 is about 272.1947831976. The cubic root of 74090 is about 42.0003779255. Note that the first 3 decimals are identical.

The spelling of 74090 in words is "seventy-four thousand, ninety".