22498542 has 48 divisors (see below), whose sum is σ = 53539200. Its totient is φ = 6771600.

The previous prime is 22498537. The next prime is 22498543. The reversal of 22498542 is 24589422.

22498542 is a `hidden beast` number, since 2 + 24 + 98 + 542 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 22498497 and 22498506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22498543) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39117 + ... + 39687.

It is an arithmetic number, because the mean of its divisors is an integer number (1115400).

Almost surely, 2^22498542 is an apocalyptic number.

22498542 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 22498542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26769600).

22498542 is an abundant number, since it is smaller than the sum of its proper divisors (31040658).

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

22498542 is a wasteful number, since it uses less digits than its factorization.

22498542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789 (or 786 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 22498542 is about 4743.2628010685. The cubic root of 22498542 is about 282.3047106191.

The spelling of 22498542 in words is "twenty-two million, four hundred ninety-eight thousand, five hundred forty-two".