2229540 has 24 divisors (see below), whose sum is σ = 6242880. Its totient is φ = 594528.

The previous prime is 2229527. The next prime is 2229541. The reversal of 2229540 is 459222.

It is a super-2 number, since 2×2229540² = 9941697223200, which contains 22 as substring.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2229540.

It is not an unprimeable number, because it can be changed into a prime (2229541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18520 + ... + 18639.

It is an arithmetic number, because the mean of its divisors is an integer number (260120).

2^2229540 is an apocalyptic number.

2229540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2229540 is an abundant number, since it is smaller than the sum of its proper divisors (4013340).

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

2229540 is a wasteful number, since it uses less digits than its factorization.

2229540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37171 (or 37169 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 2229540 is about 1493.1644249713. The cubic root of 2229540 is about 130.6386717526.

The spelling of 2229540 in words is "two million, two hundred twenty-nine thousand, five hundred forty".