421431032 has 16 divisors (see below), whose sum is σ = 862018200. Its totient is φ = 191559520.

The previous prime is 421431029. The next prime is 421431083. The reversal of 421431032 is 230134124.

It is a super-2 number, since 2×421431032² = 355208229465170048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 421430995 and 421431013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2394407 + ... + 2394582.

Almost surely, 2^421431032 is an apocalyptic number.

It is an amenable number.

421431032 is an abundant number, since it is smaller than the sum of its proper divisors (440587168).

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

421431032 is a wasteful number, since it uses less digits than its factorization.

421431032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4789006 (or 4789002 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 421431032 is about 20528.7854487303. The cubic root of 421431032 is about 749.7368155079.

Adding to 421431032 its reverse (230134124), we get a palindrome (651565156).

The spelling of 421431032 in words is "four hundred twenty-one million, four hundred thirty-one thousand, thirty-two".