423630090 has 96 divisors (see below), whose sum is σ = 1195923456. Its totient is φ = 103420800.

The previous prime is 423630073. The next prime is 423630101. The reversal of 423630090 is 90036324.

423630090 is a `hidden beast` number, since 4 + 23 + 630 + 0 + 9 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 147165 + ... + 150015.

It is an arithmetic number, because the mean of its divisors is an integer number (12457536).

Almost surely, 2^423630090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423630090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (597961728).

423630090 is an abundant number, since it is smaller than the sum of its proper divisors (772293366).

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

423630090 is a wasteful number, since it uses less digits than its factorization.

423630090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3004 (or 3001 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 423630090 is about 20582.2761131999. The cubic root of 423630090 is about 751.0386143763.

The spelling of 423630090 in words is "four hundred twenty-three million, six hundred thirty thousand, ninety".