420115432 has 32 divisors (see below), whose sum is σ = 865624320. Its totient is φ = 189562240.

The previous prime is 420115417. The next prime is 420115433. The reversal of 420115432 is 234511024.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (420115433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5368 + ... + 29479.

It is an arithmetic number, because the mean of its divisors is an integer number (27050760).

Almost surely, 2^420115432 is an apocalyptic number.

It is an amenable number.

420115432 is an abundant number, since it is smaller than the sum of its proper divisors (445508888).

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

420115432 is a wasteful number, since it uses less digits than its factorization.

420115432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35001 (or 34997 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 420115432 is about 20496.7175908729. The cubic root of 420115432 is about 748.9558400182.

Adding to 420115432 its reverse (234511024), we get a palindrome (654626456).

The spelling of 420115432 in words is "four hundred twenty million, one hundred fifteen thousand, four hundred thirty-two".