2022624 has 48 divisors (see below), whose sum is σ = 5901840. Its totient is φ = 673920.

The previous prime is 2022619. The next prime is 2022641. The reversal of 2022624 is 4262202.

It is a happy number.

2022624 is a `hidden beast` number, since 20 + 22 + 624 = 666.

It is a tau number, because it is divible by the number of its divisors (48).

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 = 2022597 and 2022606.

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, 307 + ... + 2034.

It is an arithmetic number, because the mean of its divisors is an integer number (122955).

2^2022624 is an apocalyptic number.

2022624 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2022624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2950920).

2022624 is an abundant number, since it is smaller than the sum of its proper divisors (3879216).

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

2022624 is a wasteful number, since it uses less digits than its factorization.

2022624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2360 (or 2346 counting only the distinct ones).

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

The square root of 2022624 is about 1422.1898607429. The cubic root of 2022624 is about 126.4653990469.

Adding to 2022624 its reverse (4262202), we get a palindrome (6284826).

The spelling of 2022624 in words is "two million, twenty-two thousand, six hundred twenty-four".