420130432 has 32 divisors (see below), whose sum is σ = 881035200. Its totient is φ = 199008000.

The previous prime is 420130427. The next prime is 420130441. The reversal of 420130432 is 234031024.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83944 + ... + 88807.

It is an arithmetic number, because the mean of its divisors is an integer number (27532350).

Almost surely, 2^420130432 is an apocalyptic number.

It is an amenable number.

420130432 is an abundant number, since it is smaller than the sum of its proper divisors (460904768).

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

420130432 is a wasteful number, since it uses less digits than its factorization.

420130432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172784 (or 172772 counting only the distinct ones).

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

The square root of 420130432 is about 20497.0834998543. The cubic root of 420130432 is about 748.9647536033.

Adding to 420130432 its reverse (234031024), we get a palindrome (654161456).

The spelling of 420130432 in words is "four hundred twenty million, one hundred thirty thousand, four hundred thirty-two".