22002304340 has 24 divisors (see below), whose sum is σ = 46282781160. Its totient is φ = 8786075648.

The previous prime is 22002304309. The next prime is 22002304409. The reversal of 22002304340 is 4340320022.

It can be written as a sum of positive squares in 4 ways, for example, as 6614894224 + 15387410116 = 81332^2 + 124046^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 915725 + ... + 939444.

It is an arithmetic number, because the mean of its divisors is an integer number (1928449215).

Almost surely, 2^22002304340 is an apocalyptic number.

22002304340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22002304340 is an abundant number, since it is smaller than the sum of its proper divisors (24280476820).

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

22002304340 is a wasteful number, since it uses less digits than its factorization.

22002304340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1855771 (or 1855769 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 22002304340 its reverse (4340320022), we get a palindrome (26342624362).

The spelling of 22002304340 in words is "twenty-two billion, two million, three hundred four thousand, three hundred forty".