22423044203240 has 16 divisors (see below), whose sum is σ = 50451849457380. Its totient is φ = 8969217681280.

The previous prime is 22423044203221. The next prime is 22423044203293. The reversal of 22423044203240 is 4230244032422.

It can be written as a sum of positive squares in 2 ways, for example, as 19793191694116 + 2629852509124 = 4448954^2 + 1621682^2 .

It is a super-2 number, since 2×22423044203240² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22423044203197 and 22423044203206.

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, 280288052501 + ... + 280288052580.

Almost surely, 2^{22423044203240} is an apocalyptic number.

22423044203240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22423044203240 is an abundant number, since it is smaller than the sum of its proper divisors (28028805254140).

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

22423044203240 is a wasteful number, since it uses less digits than its factorization.

22423044203240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560576105092 (or 560576105088 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 32.

Adding to 22423044203240 its reverse (4230244032422), we get a palindrome (26653288235662).

The spelling of 22423044203240 in words is "twenty-two trillion, four hundred twenty-three billion, forty-four million, two hundred three thousand, two hundred forty".