423809090 has 32 divisors (see below), whose sum is σ = 778075200. Its totient is φ = 166161600.

The previous prime is 423809083. The next prime is 423809101. The reversal of 423809090 is 90908324.

It is a super-2 number, since 2×423809090² = 359228289533256200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 423809090.

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, 200861 + ... + 202959.

It is an arithmetic number, because the mean of its divisors is an integer number (24314850).

Almost surely, 2^423809090 is an apocalyptic number.

423809090 is a deficient number, since it is larger than the sum of its proper divisors (354266110).

423809090 is a wasteful number, since it uses less digits than its factorization.

423809090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2498.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 423809090 is about 20586.6240554395. The cubic root of 423809090 is about 751.1443803774.

The spelling of 423809090 in words is "four hundred twenty-three million, eight hundred nine thousand, ninety".