22869540 has 120 divisors (see below), whose sum is σ = 75620160. Its totient is φ = 5769792.

The previous prime is 22869527. The next prime is 22869557. The reversal of 22869540 is 4596822.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 22869495 and 22869504.

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 39 ways as a sum of consecutive naturals, for example, 30409 + ... + 31151.

It is an arithmetic number, because the mean of its divisors is an integer number (630168).

Almost surely, 2^22869540 is an apocalyptic number.

22869540 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 22869540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37810080).

22869540 is an abundant number, since it is smaller than the sum of its proper divisors (52750620).

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

22869540 is a wasteful number, since it uses less digits than its factorization.

22869540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783 (or 772 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 22869540 is about 4782.2107858186. The cubic root of 22869540 is about 283.8479811960.

It can be divided in two parts, 22869 and 540, that added together give a square (23409 = 153²).

The spelling of 22869540 in words is "twenty-two million, eight hundred sixty-nine thousand, five hundred forty".