22115684 has 6 divisors (see below), whose sum is σ = 38702454. Its totient is φ = 11057840.

The previous prime is 22115669. The next prime is 22115689. The reversal of 22115684 is 48651122.

It can be written as a sum of positive squares in only one way, i.e., 20502784 + 1612900 = 4528^2 + 1270^2 .

It is not an unprimeable number, because it can be changed into a prime (22115689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2764457 + ... + 2764464.

It is an arithmetic number, because the mean of its divisors is an integer number (6450409).

Almost surely, 2^22115684 is an apocalyptic number.

It is an amenable number.

22115684 is a deficient number, since it is larger than the sum of its proper divisors (16586770).

22115684 is a wasteful number, since it uses less digits than its factorization.

22115684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5528925 (or 5528923 counting only the distinct ones).

The product of its digits is 3840, while the sum is 29.

The square root of 22115684 is about 4702.7315466652. The cubic root of 22115684 is about 280.6942127682.

The spelling of 22115684 in words is "twenty-two million, one hundred fifteen thousand, six hundred eighty-four".