22341540 has 48 divisors (see below), whose sum is σ = 67370688. Its totient is φ = 5499264.

The previous prime is 22341523. The next prime is 22341541. The reversal of 22341540 is 4514322.

It is not an unprimeable number, because it can be changed into a prime (22341541) by changing a digit.

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, 13542 + ... + 15101.

It is an arithmetic number, because the mean of its divisors is an integer number (1403556).

Almost surely, 2^22341540 is an apocalyptic number.

22341540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22341540 is an abundant number, since it is smaller than the sum of its proper divisors (45029148).

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

22341540 is a wasteful number, since it uses less digits than its factorization.

22341540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28668 (or 28666 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 22341540 is about 4726.6838269552. The cubic root of 22341540 is about 281.6465064213.

Adding to 22341540 its reverse (4514322), we get a palindrome (26855862).

The spelling of 22341540 in words is "twenty-two million, three hundred forty-one thousand, five hundred forty".