22107672 has 72 divisors (see below), whose sum is σ = 61616100. Its totient is φ = 7160544.

The previous prime is 22107661. The next prime is 22107703. The reversal of 22107672 is 27670122.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×22107672² = 977498322519168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 158979 + ... + 159117.

Almost surely, 2^22107672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22107672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30808050).

22107672 is an abundant number, since it is smaller than the sum of its proper divisors (39508428).

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

22107672 is a wasteful number, since it uses less digits than its factorization.

22107672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245 (or 191 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 22107672 is about 4701.8796241503. The cubic root of 22107672 is about 280.6603123371.

Adding to 22107672 its reverse (27670122), we get a palindrome (49777794).

The spelling of 22107672 in words is "twenty-two million, one hundred seven thousand, six hundred seventy-two".