22054740 has 48 divisors (see below), whose sum is σ = 62022912. Its totient is φ = 5855616.

The previous prime is 22054727. The next prime is 22054757. The reversal of 22054740 is 4745022.

It is a self number, because there is not a number n which added to its sum of digits gives 22054740.

It is a congruent number.

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, 15957 + ... + 17283.

It is an arithmetic number, because the mean of its divisors is an integer number (1292144).

Almost surely, 2^22054740 is an apocalyptic number.

22054740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22054740 is an abundant number, since it is smaller than the sum of its proper divisors (39968172).

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

22054740 is a wasteful number, since it uses less digits than its factorization.

22054740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1616 (or 1614 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 22054740 is about 4696.2474381148. The cubic root of 22054740 is about 280.4361400247.

Adding to 22054740 its reverse (4745022), we get a palindrome (26799762).

The spelling of 22054740 in words is "twenty-two million, fifty-four thousand, seven hundred forty".