423132220 has 24 divisors (see below), whose sum is σ = 1015517664. Its totient is φ = 145073856.

The previous prime is 423132197. The next prime is 423132251. The reversal of 423132220 is 22231324.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1511047 + ... + 1511326.

It is an arithmetic number, because the mean of its divisors is an integer number (42313236).

Almost surely, 2^423132220 is an apocalyptic number.

It is an amenable number.

423132220 is an abundant number, since it is smaller than the sum of its proper divisors (592385444).

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

423132220 is a wasteful number, since it uses less digits than its factorization.

423132220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3022389 (or 3022387 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 423132220 is about 20570.1779282533. The cubic root of 423132220 is about 750.7442804105.

Adding to 423132220 its reverse (22231324), we get a palindrome (445363544).

The spelling of 423132220 in words is "four hundred twenty-three million, one hundred thirty-two thousand, two hundred twenty".