22270828 has 12 divisors (see below), whose sum is σ = 39054960. Its totient is φ = 11112272.

The previous prime is 22270823. The next prime is 22270841. The reversal of 22270828 is 82807222.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22270828.

It is not an unprimeable number, because it can be changed into a prime (22270823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3523 + ... + 7546.

It is an arithmetic number, because the mean of its divisors is an integer number (3254580).

Almost surely, 2^22270828 is an apocalyptic number.

It is an amenable number.

22270828 is a deficient number, since it is larger than the sum of its proper divisors (16784132).

22270828 is a wasteful number, since it uses less digits than its factorization.

22270828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11576 (or 11574 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 22270828 is about 4719.1978131882. The cubic root of 22270828 is about 281.3490510050.

The spelling of 22270828 in words is "twenty-two million, two hundred seventy thousand, eight hundred twenty-eight".