22061684 has 6 divisors (see below), whose sum is σ = 38607954. Its totient is φ = 11030840.

The previous prime is 22061681. The next prime is 22061701. The reversal of 22061684 is 48616022.

It can be written as a sum of positive squares in only one way, i.e., 12759184 + 9302500 = 3572^2 + 3050^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22061681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2757707 + ... + 2757714.

It is an arithmetic number, because the mean of its divisors is an integer number (6434659).

Almost surely, 2^22061684 is an apocalyptic number.

It is an amenable number.

22061684 is a deficient number, since it is larger than the sum of its proper divisors (16546270).

22061684 is a wasteful number, since it uses less digits than its factorization.

22061684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5515425 (or 5515423 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 22061684 is about 4696.9866936154. The cubic root of 22061684 is about 280.4655689852.

The spelling of 22061684 in words is "twenty-two million, sixty-one thousand, six hundred eighty-four".