22777044 has 12 divisors (see below), whose sum is σ = 53146464. Its totient is φ = 7592344.

The previous prime is 22777039. The next prime is 22777049. The reversal of 22777044 is 44077722.

It is an interprime number because it is at equal distance from previous prime (22777039) and next prime (22777049).

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 22776996 and 22777014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22777049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 949032 + ... + 949055.

It is an arithmetic number, because the mean of its divisors is an integer number (4428872).

Almost surely, 2^22777044 is an apocalyptic number.

It is an amenable number.

22777044 is an abundant number, since it is smaller than the sum of its proper divisors (30369420).

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

22777044 is a wasteful number, since it uses less digits than its factorization.

22777044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1898094 (or 1898092 counting only the distinct ones).

The product of its (nonzero) digits is 21952, while the sum is 33.

The square root of 22777044 is about 4772.5301465784. The cubic root of 22777044 is about 283.4647891347.

The spelling of 22777044 in words is "twenty-two million, seven hundred seventy-seven thousand, forty-four".