22315672 has 8 divisors (see below), whose sum is σ = 41841900. Its totient is φ = 11157832.

The previous prime is 22315663. The next prime is 22315673. The reversal of 22315672 is 27651322.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×22315672³ (a number of 23 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22315672.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22315673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1394722 + ... + 1394737.

Almost surely, 2^22315672 is an apocalyptic number.

It is an amenable number.

22315672 is a deficient number, since it is larger than the sum of its proper divisors (19526228).

22315672 is a wasteful number, since it uses less digits than its factorization.

22315672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2789465 (or 2789461 counting only the distinct ones).

The product of its digits is 5040, while the sum is 28.

The square root of 22315672 is about 4723.9466550756. The cubic root of 22315672 is about 281.5377636114.

Adding to 22315672 its reverse (27651322), we get a palindrome (49966994).

The spelling of 22315672 in words is "twenty-two million, three hundred fifteen thousand, six hundred seventy-two".