22458492 has 96 divisors (see below), whose sum is σ = 67773440. Its totient is φ = 6298560.

The previous prime is 22458487. The next prime is 22458503. The reversal of 22458492 is 29485422.

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

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 31 ways as a sum of consecutive naturals, for example, 45873 + ... + 46359.

Almost surely, 2^22458492 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22458492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33886720).

22458492 is an abundant number, since it is smaller than the sum of its proper divisors (45314948).

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

22458492 is a wasteful number, since it uses less digits than its factorization.

22458492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568 (or 560 counting only the distinct ones).

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

The square root of 22458492 is about 4739.0391431175. The cubic root of 22458492 is about 282.1370994743.

It can be divided in two parts, 224584 and 92, that added together give a square (224676 = 474²).

The spelling of 22458492 in words is "twenty-two million, four hundred fifty-eight thousand, four hundred ninety-two".