22378084 has 12 divisors (see below), whose sum is σ = 39900924. Its totient is φ = 10977824.

The previous prime is 22378079. The next prime is 22378091. The reversal of 22378084 is 48087322.

It can be written as a sum of positive squares in 2 ways, for example, as 15824484 + 6553600 = 3978^2 + 2560^2 .

It is a super-2 number, since 2×22378084² = 1001557287022112, which contains 22 as substring.

It is an unprimeable number.

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, 52567 + ... + 52990.

It is an arithmetic number, because the mean of its divisors is an integer number (3325077).

Almost surely, 2^22378084 is an apocalyptic number.

It is an amenable number.

22378084 is a deficient number, since it is larger than the sum of its proper divisors (17522840).

22378084 is a wasteful number, since it uses less digits than its factorization.

22378084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105614 (or 105612 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 22378084 is about 4730.5479598034. The cubic root of 22378084 is about 281.7999855940.

The spelling of 22378084 in words is "twenty-two million, three hundred seventy-eight thousand, eighty-four".