22849140 has 24 divisors (see below), whose sum is σ = 63977760. Its totient is φ = 6093088.

The previous prime is 22849133. The next prime is 22849157. The reversal of 22849140 is 4194822.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 22849098 and 22849107.

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 7 ways as a sum of consecutive naturals, for example, 190350 + ... + 190469.

It is an arithmetic number, because the mean of its divisors is an integer number (2665740).

Almost surely, 2^22849140 is an apocalyptic number.

22849140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22849140 is an abundant number, since it is smaller than the sum of its proper divisors (41128620).

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

22849140 is a wasteful number, since it uses less digits than its factorization.

22849140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380831 (or 380829 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 22849140 is about 4780.0774052310. The cubic root of 22849140 is about 283.7635570900.

The spelling of 22849140 in words is "twenty-two million, eight hundred forty-nine thousand, one hundred forty".