431420112 has 30 divisors (see below), whose sum is σ = 1207377522. Its totient is φ = 143806656.

The previous prime is 431420089. The next prime is 431420117. The reversal of 431420112 is 211024134.

It can be written as a sum of positive squares in only one way, i.e., 395850816 + 35569296 = 19896^2 + 5964^2 .

It is a super-2 number, since 2×431420112² = 372246626076185088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431420117) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1497843 + ... + 1498130.

Almost surely, 2^431420112 is an apocalyptic number.

It is an amenable number.

431420112 is an abundant number, since it is smaller than the sum of its proper divisors (775957410).

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

431420112 is a wasteful number, since it uses less digits than its factorization.

431420112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2995987 (or 2995978 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 431420112 is about 20770.6550691113. The cubic root of 431420112 is about 755.6142316728.

Adding to 431420112 its reverse (211024134), we get a palindrome (642444246).

The spelling of 431420112 in words is "four hundred thirty-one million, four hundred twenty thousand, one hundred twelve".