74199090 has 32 divisors (see below), whose sum is σ = 203518080. Its totient is φ = 16959744.

The previous prime is 74199079. The next prime is 74199109. The reversal of 74199090 is 9099147.

It is a Curzon 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, 176455 + ... + 176874.

It is an arithmetic number, because the mean of its divisors is an integer number (6359940).

Almost surely, 2^74199090 is an apocalyptic number.

74199090 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

74199090 is an abundant number, since it is smaller than the sum of its proper divisors (129318990).

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

74199090 is a wasteful number, since it uses less digits than its factorization.

74199090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353346.

The product of its (nonzero) digits is 20412, while the sum is 39.

The square root of 74199090 is about 8613.8893654377. The cubic root of 74199090 is about 420.2098158016.

The spelling of 74199090 in words is "seventy-four million, one hundred ninety-nine thousand, ninety".