22077798 has 32 divisors (see below), whose sum is σ = 46987776. Its totient is φ = 6891648.

The previous prime is 22077767. The next prime is 22077817. The reversal of 22077798 is 89777022.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26415 + ... + 27237.

It is an arithmetic number, because the mean of its divisors is an integer number (1468368).

Almost surely, 2^22077798 is an apocalyptic number.

22077798 is an abundant number, since it is smaller than the sum of its proper divisors (24909978).

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

22077798 is a wasteful number, since it uses less digits than its factorization.

22077798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1108.

The product of its (nonzero) digits is 98784, while the sum is 42.

The square root of 22077798 is about 4698.7017355861. The cubic root of 22077798 is about 280.5338370027.

The spelling of 22077798 in words is "twenty-two million, seventy-seven thousand, seven hundred ninety-eight".