11423090 has 32 divisors (see below), whose sum is σ = 23950080. Its totient is φ = 3841344.

The previous prime is 11423081. The next prime is 11423101. The reversal of 11423090 is 9032411.

11423090 = 438² + 439² + ... + 490².

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2171 + ... + 5249.

It is an arithmetic number, because the mean of its divisors is an integer number (748440).

Almost surely, 2^11423090 is an apocalyptic number.

11423090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11423090 is an abundant number, since it is smaller than the sum of its proper divisors (12526990).

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

11423090 is a wasteful number, since it uses less digits than its factorization.

11423090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3146.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 11423090 is about 3379.8062074622. The cubic root of 11423090 is about 225.2135585538.

The spelling of 11423090 in words is "eleven million, four hundred twenty-three thousand, ninety".