420112432 has 40 divisors (see below), whose sum is σ = 870788016. Its totient is φ = 195649536.

The previous prime is 420112379. The next prime is 420112447. The reversal of 420112432 is 234211024.

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, 18423 + ... + 34345.

Almost surely, 2^420112432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 420112432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (435394008).

420112432 is an abundant number, since it is smaller than the sum of its proper divisors (450675584).

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

420112432 is a wasteful number, since it uses less digits than its factorization.

420112432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16045 (or 16039 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 420112432 is about 20496.6444082928. The cubic root of 420112432 is about 748.9540572758.

Adding to 420112432 its reverse (234211024), we get a palindrome (654323456).

The spelling of 420112432 in words is "four hundred twenty million, one hundred twelve thousand, four hundred thirty-two".