622421031 has 16 divisors (see below), whose sum is σ = 850636800. Its totient is φ = 404687808.

The previous prime is 622421027. The next prime is 622421039. The reversal of 622421031 is 130124226.

It is not a de Polignac number, because 622421031 - 2² = 622421027 is a prime.

It is a super-2 number, since 2×622421031² = 774815879662205922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 622420989 and 622421007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622421039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8635 + ... + 36323.

It is an arithmetic number, because the mean of its divisors is an integer number (53164800).

Almost surely, 2^622421031 is an apocalyptic number.

622421031 is a deficient number, since it is larger than the sum of its proper divisors (228215769).

622421031 is a wasteful number, since it uses less digits than its factorization.

622421031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27878.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 622421031 is about 24948.3673012885. The cubic root of 622421031 is about 853.8103587780.

Adding to 622421031 its reverse (130124226), we get a palindrome (752545257).

The spelling of 622421031 in words is "six hundred twenty-two million, four hundred twenty-one thousand, thirty-one".