22455780 has 48 divisors (see below), whose sum is σ = 64909824. Its totient is φ = 5794560.

The previous prime is 22455737. The next prime is 22455799. The reversal of 22455780 is 8755422.

It is a super-3 number, since 3×22455780³ (a number of 23 digits) contains 333 as substring.

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 15 ways as a sum of consecutive naturals, for example, 4177 + ... + 7896.

It is an arithmetic number, because the mean of its divisors is an integer number (1352288).

Almost surely, 2^22455780 is an apocalyptic number.

22455780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22455780 is an abundant number, since it is smaller than the sum of its proper divisors (42454044).

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

22455780 is a wasteful number, since it uses less digits than its factorization.

22455780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12116 (or 12114 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 33.

The square root of 22455780 is about 4738.7530005266. The cubic root of 22455780 is about 282.1257424248.

The spelling of 22455780 in words is "twenty-two million, four hundred fifty-five thousand, seven hundred eighty".