22458340 has 24 divisors (see below), whose sum is σ = 47279232. Its totient is φ = 8961120.

The previous prime is 22458311. The next prime is 22458347. The reversal of 22458340 is 4385422.

It is a junction number, because it is equal to n+sod(n) for n = 22458299 and 22458308.

It is not an unprimeable number, because it can be changed into a prime (22458347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8677 + ... + 10963.

It is an arithmetic number, because the mean of its divisors is an integer number (1969968).

Almost surely, 2^22458340 is an apocalyptic number.

22458340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22458340 is an abundant number, since it is smaller than the sum of its proper divisors (24820892).

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

22458340 is a wasteful number, since it uses less digits than its factorization.

22458340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2787 (or 2785 counting only the distinct ones).

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

The square root of 22458340 is about 4739.0231060842. The cubic root of 22458340 is about 282.1364629677.

It can be divided in two parts, 2245 and 8340, that added together give a triangular number (10585 = T₁₄₅).

The spelling of 22458340 in words is "twenty-two million, four hundred fifty-eight thousand, three hundred forty".