622604421 has 16 divisors (see below), whose sum is σ = 923109120. Its totient is φ = 414740160.

The previous prime is 622604399. The next prime is 622604429. The reversal of 622604421 is 124406226.

It is not a de Polignac number, because 622604421 - 2¹³ = 622596229 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622604429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28276 + ... + 45218.

It is an arithmetic number, because the mean of its divisors is an integer number (57694320).

Almost surely, 2^622604421 is an apocalyptic number.

It is an amenable number.

622604421 is a deficient number, since it is larger than the sum of its proper divisors (300504699).

622604421 is a wasteful number, since it uses less digits than its factorization.

622604421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18313 (or 18307 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 622604421 is about 24952.0424214131. The cubic root of 622604421 is about 853.8942060444.

The spelling of 622604421 in words is "six hundred twenty-two million, six hundred four thousand, four hundred twenty-one".