22659240 has 32 divisors (see below), whose sum is σ = 67978080. Its totient is φ = 6042432.

The previous prime is 22659227. The next prime is 22659251. The reversal of 22659240 is 4295622.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 22659198 and 22659207.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94294 + ... + 94533.

It is an arithmetic number, because the mean of its divisors is an integer number (2124315).

Almost surely, 2^22659240 is an apocalyptic number.

22659240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22659240 is an abundant number, since it is smaller than the sum of its proper divisors (45318840).

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

22659240 is a wasteful number, since it uses less digits than its factorization.

22659240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188841 (or 188837 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 22659240 is about 4760.1722657904. The cubic root of 22659240 is about 282.9752462044.

The spelling of 22659240 in words is "twenty-two million, six hundred fifty-nine thousand, two hundred forty".