433431940 has 12 divisors (see below), whose sum is σ = 910207116. Its totient is φ = 173372768.

The previous prime is 433431937. The next prime is 433431991. The reversal of 433431940 is 49134334.

It can be written as a sum of positive squares in 2 ways, for example, as 338486404 + 94945536 = 18398^2 + 9744^2 .

It is a super-2 number, since 2×433431940² = 375726493224327200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10835779 + ... + 10835818.

It is an arithmetic number, because the mean of its divisors is an integer number (75850593).

Almost surely, 2^433431940 is an apocalyptic number.

It is an amenable number.

433431940 is an abundant number, since it is smaller than the sum of its proper divisors (476775176).

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

433431940 is a wasteful number, since it uses less digits than its factorization.

433431940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21671606 (or 21671604 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 433431940 is about 20819.0283154618. The cubic root of 433431940 is about 756.7869547705.

The spelling of 433431940 in words is "four hundred thirty-three million, four hundred thirty-one thousand, nine hundred forty".