22028324838 has 32 divisors (see below), whose sum is σ = 50236544736. Its totient is φ = 6379243008.

The previous prime is 22028324837. The next prime is 22028324839. The reversal of 22028324838 is 83842382022.

It is an interprime number because it is at equal distance from previous prime (22028324837) and next prime (22028324839).

It is a self number, because there is not a number n which added to its sum of digits gives 22028324838.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22028324831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8304981 + ... + 8307632.

It is an arithmetic number, because the mean of its divisors is an integer number (1569892023).

Almost surely, 2^22028324838 is an apocalyptic number.

22028324838 is an abundant number, since it is smaller than the sum of its proper divisors (28208219898).

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

22028324838 is a wasteful number, since it uses less digits than its factorization.

22028324838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16612648.

The product of its (nonzero) digits is 294912, while the sum is 42.

The spelling of 22028324838 in words is "twenty-two billion, twenty-eight million, three hundred twenty-four thousand, eight hundred thirty-eight".