22487936 has 16 divisors (see below), whose sum is σ = 44800440. Its totient is φ = 11243904.

The previous prime is 22487921. The next prime is 22487939. The reversal of 22487936 is 63978422.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 22487893 and 22487902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22487939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87716 + ... + 87971.

Almost surely, 2^22487936 is an apocalyptic number.

It is an amenable number.

22487936 is a deficient number, since it is larger than the sum of its proper divisors (22312504).

22487936 is an equidigital number, since it uses as much as digits as its factorization.

22487936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175701 (or 175689 counting only the distinct ones).

The product of its digits is 145152, while the sum is 41.

The square root of 22487936 is about 4742.1446624919. The cubic root of 22487936 is about 282.2603433831.

The spelling of 22487936 in words is "twenty-two million, four hundred eighty-seven thousand, nine hundred thirty-six".