22075540 has 24 divisors (see below), whose sum is σ = 46448640. Its totient is φ = 8813088.

The previous prime is 22075531. The next prime is 22075541. The reversal of 22075540 is 4557022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22075541) 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, 16621 + ... + 17899.

It is an arithmetic number, because the mean of its divisors is an integer number (1935360).

Almost surely, 2^22075540 is an apocalyptic number.

22075540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22075540 is an abundant number, since it is smaller than the sum of its proper divisors (24373100).

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

22075540 is a wasteful number, since it uses less digits than its factorization.

22075540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2151 (or 2149 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 22075540 is about 4698.4614503048. The cubic root of 22075540 is about 280.5242728393.

The spelling of 22075540 in words is "twenty-two million, seventy-five thousand, five hundred forty".