424430644 has 12 divisors (see below), whose sum is σ = 810276768. Its totient is φ = 192923000.

The previous prime is 424430627. The next prime is 424430651. The reversal of 424430644 is 446034424.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4823032 + ... + 4823119.

It is an arithmetic number, because the mean of its divisors is an integer number (67523064).

Almost surely, 2^424430644 is an apocalyptic number.

424430644 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

424430644 is a deficient number, since it is larger than the sum of its proper divisors (385846124).

424430644 is a wasteful number, since it uses less digits than its factorization.

424430644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9646166 (or 9646164 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 31.

The square root of 424430644 is about 20601.7145888394. The cubic root of 424430644 is about 751.5114078528.

The spelling of 424430644 in words is "four hundred twenty-four million, four hundred thirty thousand, six hundred forty-four".