22141740 has 24 divisors (see below), whose sum is σ = 61997040. Its totient is φ = 5904448.

The previous prime is 22141739. The next prime is 22141753. The reversal of 22141740 is 4714122.

It is a happy 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, 184455 + ... + 184574.

It is an arithmetic number, because the mean of its divisors is an integer number (2583210).

Almost surely, 2^22141740 is an apocalyptic number.

22141740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22141740 is an abundant number, since it is smaller than the sum of its proper divisors (39855300).

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

22141740 is a wasteful number, since it uses less digits than its factorization.

22141740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369041 (or 369039 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 22141740 is about 4705.5010360216. The cubic root of 22141740 is about 280.8044045218.

Adding to 22141740 its reverse (4714122), we get a palindrome (26855862).

The spelling of 22141740 in words is "twenty-two million, one hundred forty-one thousand, seven hundred forty".