430431320 has 64 divisors (see below), whose sum is σ = 1112140800. Its totient is φ = 148279680.

The previous prime is 430431319. The next prime is 430431341. The reversal of 430431320 is 23134034.

It is a super-2 number, since 2×430431320² = 370542242473884800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 430431292 and 430431301.

It is a congruent number.

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, 17384 + ... + 34103.

It is an arithmetic number, because the mean of its divisors is an integer number (17377200).

Almost surely, 2^430431320 is an apocalyptic number.

430431320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

430431320 is an abundant number, since it is smaller than the sum of its proper divisors (681709480).

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

430431320 is a wasteful number, since it uses less digits than its factorization.

430431320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51528 (or 51524 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 430431320 is about 20746.8387953442. The cubic root of 430431320 is about 755.0365141763.

Adding to 430431320 its reverse (23134034), we get a palindrome (453565354).

The spelling of 430431320 in words is "four hundred thirty million, four hundred thirty-one thousand, three hundred twenty".