22487800 has 48 divisors (see below), whose sum is σ = 52619400. Its totient is φ = 8937600.

The previous prime is 22487783. The next prime is 22487819. The reversal of 22487800 is 878422.

It is a super-2 number, since 2×22487800² = 1011402297680000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45555 + ... + 46045.

Almost surely, 2^22487800 is an apocalyptic number.

22487800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22487800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26309700).

22487800 is an abundant number, since it is smaller than the sum of its proper divisors (30131600).

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

22487800 is a wasteful number, since it uses less digits than its factorization.

22487800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736 (or 727 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 22487800 is about 4742.1303229667. The cubic root of 22487800 is about 282.2597743745.

The spelling of 22487800 in words is "twenty-two million, four hundred eighty-seven thousand, eight hundred".