431898432 has 112 divisors (see below), whose sum is σ = 1313029632. Its totient is φ = 122734080.

The previous prime is 431898419. The next prime is 431898457. The reversal of 431898432 is 234898134.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 282823 + ... + 284345.

Almost surely, 2^431898432 is an apocalyptic number.

431898432 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 431898432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (656514816).

431898432 is an abundant number, since it is smaller than the sum of its proper divisors (881131200).

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

431898432 is a wasteful number, since it uses less digits than its factorization.

431898432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1756 (or 1746 counting only the distinct ones).

The product of its digits is 165888, while the sum is 42.

The square root of 431898432 is about 20782.1662008560. The cubic root of 431898432 is about 755.8933810057.

The spelling of 431898432 in words is "four hundred thirty-one million, eight hundred ninety-eight thousand, four hundred thirty-two".