652221424 has 20 divisors (see below), whose sum is σ = 1266990336. Its totient is φ = 325256192.

The previous prime is 652221421. The next prime is 652221469. The reversal of 652221424 is 424122256.

It is a junction number, because it is equal to n+sod(n) for n = 652221392 and 652221401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (652221421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47089 + ... + 59344.

Almost surely, 2^652221424 is an apocalyptic number.

It is an amenable number.

652221424 is a deficient number, since it is larger than the sum of its proper divisors (614768912).

652221424 is a wasteful number, since it uses less digits than its factorization.

652221424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106824 (or 106818 counting only the distinct ones).

The product of its digits is 7680, while the sum is 28.

The square root of 652221424 is about 25538.6261180981. The cubic root of 652221424 is about 867.2247957830.

The spelling of 652221424 in words is "six hundred fifty-two million, two hundred twenty-one thousand, four hundred twenty-four".