622643552 has 24 divisors (see below), whose sum is σ = 1226421000. Its totient is φ = 311171584.

The previous prime is 622643467. The next prime is 622643563. The reversal of 622643552 is 255346226.

It is a super-4 number, since 4×622643552⁴ (a number of 36 digits) contains 4444 as substring.

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, 95699 + ... + 101997.

It is an arithmetic number, because the mean of its divisors is an integer number (51100875).

Almost surely, 2^622643552 is an apocalyptic number.

It is an amenable number.

622643552 is a deficient number, since it is larger than the sum of its proper divisors (603777448).

622643552 is a wasteful number, since it uses less digits than its factorization.

622643552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9398 (or 9390 counting only the distinct ones).

The product of its digits is 86400, while the sum is 35.

The square root of 622643552 is about 24952.8265332808. The cubic root of 622643552 is about 853.9120948959.

Adding to 622643552 its reverse (255346226), we get a palindrome (877989778).

The spelling of 622643552 in words is "six hundred twenty-two million, six hundred forty-three thousand, five hundred fifty-two".