22087532 has 12 divisors (see below), whose sum is σ = 39198096. Its totient is φ = 10888080.

The previous prime is 22087523. The next prime is 22087543. The reversal of 22087532 is 23578022.

It is a junction number, because it is equal to n+sod(n) for n = 22087495 and 22087504.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38603 + ... + 39170.

It is an arithmetic number, because the mean of its divisors is an integer number (3266508).

Almost surely, 2^22087532 is an apocalyptic number.

It is an amenable number.

22087532 is a deficient number, since it is larger than the sum of its proper divisors (17110564).

22087532 is a wasteful number, since it uses less digits than its factorization.

22087532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77848 (or 77846 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 22087532 is about 4699.7374394747. The cubic root of 22087532 is about 280.5750596395.

The spelling of 22087532 in words is "twenty-two million, eighty-seven thousand, five hundred thirty-two".