22454380 has 48 divisors (see below), whose sum is σ = 51579360. Its totient is φ = 8160768.

The previous prime is 22454359. The next prime is 22454387. The reversal of 22454380 is 8345422.

It is not an unprimeable number, because it can be changed into a prime (22454387) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 16776 + ... + 18064.

It is an arithmetic number, because the mean of its divisors is an integer number (1074570).

Almost surely, 2^22454380 is an apocalyptic number.

22454380 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 22454380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25789680).

22454380 is an abundant number, since it is smaller than the sum of its proper divisors (29124980).

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

22454380 is a wasteful number, since it uses less digits than its factorization.

22454380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378 (or 1376 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 22454380 is about 4738.6052800376. The cubic root of 22454380 is about 282.1198792833.

The spelling of 22454380 in words is "twenty-two million, four hundred fifty-four thousand, three hundred eighty".