431204242 has 32 divisors (see below), whose sum is σ = 755201664. Its totient is φ = 180835200.

The previous prime is 431204233. The next prime is 431204251. The reversal of 431204242 is 242402134.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (431204233) and next prime (431204251).

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, 178998 + ... + 181390.

It is an arithmetic number, because the mean of its divisors is an integer number (23600052).

Almost surely, 2^431204242 is an apocalyptic number.

431204242 is a deficient number, since it is larger than the sum of its proper divisors (323997422).

431204242 is a wasteful number, since it uses less digits than its factorization.

431204242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2674.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 431204242 is about 20765.4579048958. The cubic root of 431204242 is about 755.4881815628.

Adding to 431204242 its reverse (242402134), we get a palindrome (673606376).

The spelling of 431204242 in words is "four hundred thirty-one million, two hundred four thousand, two hundred forty-two".