22451301403240 has 32 divisors (see below), whose sum is σ = 50547059752680. Its totient is φ = 8974897166592.

The previous prime is 22451301403217. The next prime is 22451301403243. The reversal of 22451301403240 is 4230410315422.

It can be written as a sum of positive squares in 4 ways, for example, as 7448740060644 + 15002561342596 = 2729238^2 + 3873314^2 .

It is not an unprimeable number, because it can be changed into a prime (22451301403243) 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, 175666407 + ... + 175794166.

Almost surely, 2^{22451301403240} is an apocalyptic number.

22451301403240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22451301403240 is an abundant number, since it is smaller than the sum of its proper divisors (28095758349440).

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

22451301403240 is a wasteful number, since it uses less digits than its factorization.

22451301403240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351462181 (or 351462177 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 22451301403240 its reverse (4230410315422), we get a palindrome (26681711718662).

The spelling of 22451301403240 in words is "twenty-two trillion, four hundred fifty-one billion, three hundred one million, four hundred three thousand, two hundred forty".