2022540 has 48 divisors (see below), whose sum is σ = 6101088. Its totient is φ = 497664.

The previous prime is 2022539. The next prime is 2022583. The reversal of 2022540 is 452202.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 517 + ... + 2076.

It is an arithmetic number, because the mean of its divisors is an integer number (127106).

2^2022540 is an apocalyptic number.

2022540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2022540 is an abundant number, since it is smaller than the sum of its proper divisors (4078548).

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

2022540 is a wasteful number, since it uses less digits than its factorization.

2022540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2618 (or 2616 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 2022540 is about 1422.1603285143. The cubic root of 2022540 is about 126.4636483111.

Adding to 2022540 its reverse (452202), we get a palindrome (2474742).

The spelling of 2022540 in words is "two million, twenty-two thousand, five hundred forty".