22906040 has 16 divisors (see below), whose sum is σ = 51538680. Its totient is φ = 9162400.

The previous prime is 22906033. The next prime is 22906069. The reversal of 22906040 is 4060922.

It is a junction number, because it is equal to n+sod(n) for n = 22905997 and 22906015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 286286 + ... + 286365.

Almost surely, 2^22906040 is an apocalyptic number.

22906040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22906040 is an abundant number, since it is smaller than the sum of its proper divisors (28632640).

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

22906040 is a wasteful number, since it uses less digits than its factorization.

22906040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572662 (or 572658 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 22906040 is about 4786.0254909476. The cubic root of 22906040 is about 283.9989089424.

Adding to 22906040 its reverse (4060922), we get a palindrome (26966962).

The spelling of 22906040 in words is "twenty-two million, nine hundred six thousand, forty".