22313140 has 12 divisors (see below), whose sum is σ = 46857636. Its totient is φ = 8925248.

The previous prime is 22313131. The next prime is 22313153. The reversal of 22313140 is 4131322.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12802084 + 9511056 = 3578^2 + 3084^2 .

It is a super-3 number, since 3×22313140³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 557809 + ... + 557848.

It is an arithmetic number, because the mean of its divisors is an integer number (3904803).

Almost surely, 2^22313140 is an apocalyptic number.

22313140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22313140 is an abundant number, since it is smaller than the sum of its proper divisors (24544496).

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

22313140 is a wasteful number, since it uses less digits than its factorization.

22313140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115666 (or 1115664 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 22313140 is about 4723.6786512209. The cubic root of 22313140 is about 281.5271151819.

Adding to 22313140 its reverse (4131322), we get a palindrome (26444462).

The spelling of 22313140 in words is "twenty-two million, three hundred thirteen thousand, one hundred forty".