430423440 has 80 divisors (see below), whose sum is σ = 1336337088. Its totient is φ = 114605568.

The previous prime is 430423439. The next prime is 430423457. The reversal of 430423440 is 44324034.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 430423440.

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, 268722 + ... + 270318.

Almost surely, 2^430423440 is an apocalyptic number.

430423440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

430423440 is an abundant number, since it is smaller than the sum of its proper divisors (905913648).

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

430423440 is a wasteful number, since it uses less digits than its factorization.

430423440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2736 (or 2730 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 430423440 is about 20746.6488860249. The cubic root of 430423440 is about 755.0319066088.

Adding to 430423440 its reverse (44324034), we get a palindrome (474747474).

The spelling of 430423440 in words is "four hundred thirty million, four hundred twenty-three thousand, four hundred forty".