22214740 has 24 divisors (see below), whose sum is σ = 46771200. Its totient is φ = 8863008.

The previous prime is 22214729. The next prime is 22214747. The reversal of 22214740 is 4741222.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22214747) 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, 8061 + ... + 10459.

It is an arithmetic number, because the mean of its divisors is an integer number (1948800).

Almost surely, 2^22214740 is an apocalyptic number.

22214740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22214740 is an abundant number, since it is smaller than the sum of its proper divisors (24556460).

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

22214740 is a wasteful number, since it uses less digits than its factorization.

22214740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2871 (or 2869 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 22214740 is about 4713.2515315862. The cubic root of 22214740 is about 281.1126644720.

Adding to 22214740 its reverse (4741222), we get a palindrome (26955962).

The spelling of 22214740 in words is "twenty-two million, two hundred fourteen thousand, seven hundred forty".