20220624 has 40 divisors (see below), whose sum is σ = 58041920. Its totient is φ = 6740064.

The previous prime is 20220619. The next prime is 20220631. The reversal of 20220624 is 42602202.

It is a happy number.

20220624 is a `hidden beast` number, since 20 + 2 + 20 + 624 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20220597 and 20220606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22972 + ... + 23835.

It is an arithmetic number, because the mean of its divisors is an integer number (1451048).

Almost surely, 2^20220624 is an apocalyptic number.

20220624 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20220624 is an abundant number, since it is smaller than the sum of its proper divisors (37821296).

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

20220624 is a wasteful number, since it uses less digits than its factorization.

20220624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46824 (or 46812 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 20220624 is about 4496.7348153966. The cubic root of 20220624 is about 272.4362233262.

Adding to 20220624 its reverse (42602202), we get a palindrome (62822826).

The spelling of 20220624 in words is "twenty million, two hundred twenty thousand, six hundred twenty-four".