424172644 has 48 divisors (see below), whose sum is σ = 945544320. Its totient is φ = 162086400.

The previous prime is 424172633. The next prime is 424172669. The reversal of 424172644 is 446271424.

It is a Harshad number since it is a multiple of its sum of digits (34).

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, 14407 + ... + 32494.

It is an arithmetic number, because the mean of its divisors is an integer number (19698840).

Almost surely, 2^424172644 is an apocalyptic number.

It is an amenable number.

424172644 is an abundant number, since it is smaller than the sum of its proper divisors (521371676).

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

424172644 is a wasteful number, since it uses less digits than its factorization.

424172644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46948 (or 46946 counting only the distinct ones).

The product of its digits is 43008, while the sum is 34.

The square root of 424172644 is about 20595.4520222305. The cubic root of 424172644 is about 751.3591024478.

The spelling of 424172644 in words is "four hundred twenty-four million, one hundred seventy-two thousand, six hundred forty-four".