22288470 has 16 divisors (see below), whose sum is σ = 53492400. Its totient is φ = 5943584.

The previous prime is 22288451. The next prime is 22288499. The reversal of 22288470 is 7488222.

It is a congruent number.

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, 371445 + ... + 371504.

It is an arithmetic number, because the mean of its divisors is an integer number (3343275).

Almost surely, 2^22288470 is an apocalyptic number.

22288470 is an abundant number, since it is smaller than the sum of its proper divisors (31203930).

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

22288470 is a wasteful number, since it uses less digits than its factorization.

22288470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742959.

The product of its (nonzero) digits is 14336, while the sum is 33.

The square root of 22288470 is about 4721.0666167721. The cubic root of 22288470 is about 281.4233223028.

The spelling of 22288470 in words is "twenty-two million, two hundred eighty-eight thousand, four hundred seventy".