22740408 has 48 divisors (see below), whose sum is σ = 63718200. Its totient is φ = 7318080.

The previous prime is 22740401. The next prime is 22740409. The reversal of 22740408 is 80404722.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22740401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3358 + ... + 7533.

Almost surely, 2^22740408 is an apocalyptic number.

It is an amenable number.

22740408 is an abundant number, since it is smaller than the sum of its proper divisors (40977792).

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

22740408 is a wasteful number, since it uses less digits than its factorization.

22740408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10932 (or 10925 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 22740408 is about 4768.6903862591. The cubic root of 22740408 is about 283.3127268366.

The spelling of 22740408 in words is "twenty-two million, seven hundred forty thousand, four hundred eight".