431257230 has 64 divisors (see below), whose sum is σ = 1158393600. Its totient is φ = 114164640.

The previous prime is 431257223. The next prime is 431257313. The reversal of 431257230 is 32752134.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 431257194 and 431257203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31785 + ... + 43275.

It is an arithmetic number, because the mean of its divisors is an integer number (18099900).

Almost surely, 2^431257230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 431257230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (579196800).

431257230 is an abundant number, since it is smaller than the sum of its proper divisors (727136370).

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

431257230 is a wasteful number, since it uses less digits than its factorization.

431257230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11646 (or 11640 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 431257230 is about 20766.7337345091. The cubic root of 431257230 is about 755.5191260390.

The spelling of 431257230 in words is "four hundred thirty-one million, two hundred fifty-seven thousand, two hundred thirty".