22667240 has 16 divisors (see below), whose sum is σ = 51001380. Its totient is φ = 9066880.

The previous prime is 22667237. The next prime is 22667257. The reversal of 22667240 is 4276622.

It can be written as a sum of positive squares in 2 ways, for example, as 19838116 + 2829124 = 4454^2 + 1682^2 .

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, 283301 + ... + 283380.

Almost surely, 2^22667240 is an apocalyptic number.

22667240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22667240 is an abundant number, since it is smaller than the sum of its proper divisors (28334140).

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

22667240 is a wasteful number, since it uses less digits than its factorization.

22667240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566692 (or 566688 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 22667240 is about 4761.0124973581. The cubic root of 22667240 is about 283.0085444028.

The spelling of 22667240 in words is "twenty-two million, six hundred sixty-seven thousand, two hundred forty".