432671940 has 72 divisors (see below), whose sum is σ = 1329095040. Its totient is φ = 113914944.

The previous prime is 432671881. The next prime is 432671983. The reversal of 432671940 is 49176234.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 432671895 and 432671904.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 994 + ... + 29433.

Almost surely, 2^432671940 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 432671940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (664547520).

432671940 is an abundant number, since it is smaller than the sum of its proper divisors (896423100).

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

432671940 is a wasteful number, since it uses less digits than its factorization.

432671940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30521 (or 30516 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 432671940 is about 20800.7677742914. The cubic root of 432671940 is about 756.3443673420.

The spelling of 432671940 in words is "four hundred thirty-two million, six hundred seventy-one thousand, nine hundred forty".