430857240 has 128 divisors (see below), whose sum is σ = 1424217600. Its totient is φ = 103403520.

The previous prime is 430857199. The next prime is 430857241. The reversal of 430857240 is 42758034.

It is a super-2 number, since 2×430857240² = 371275922520835200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (430857241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 134376 + ... + 137544.

It is an arithmetic number, because the mean of its divisors is an integer number (11126700).

Almost surely, 2^430857240 is an apocalyptic number.

430857240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 430857240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (712108800).

430857240 is an abundant number, since it is smaller than the sum of its proper divisors (993360360).

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

430857240 is a wasteful number, since it uses less digits than its factorization.

430857240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3297 (or 3293 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 430857240 is about 20757.1009536496. The cubic root of 430857240 is about 755.2854730879.

The spelling of 430857240 in words is "four hundred thirty million, eight hundred fifty-seven thousand, two hundred forty".