22402440040 has 32 divisors (see below), whose sum is σ = 50532491880. Its totient is φ = 8938397952.

The previous prime is 22402440031. The next prime is 22402440077. The reversal of 22402440040 is 4004420422.

It can be written as a sum of positive squares in 4 ways, for example, as 22393925316 + 8514724 = 149646^2 + 2918^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22402439993 and 22402440020.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 689487 + ... + 721246.

Almost surely, 2^22402440040 is an apocalyptic number.

22402440040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22402440040 is an abundant number, since it is smaller than the sum of its proper divisors (28130051840).

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

22402440040 is a wasteful number, since it uses less digits than its factorization.

22402440040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1411141 (or 1411137 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 22402440040 its reverse (4004420422), we get a palindrome (26406860462).

The spelling of 22402440040 in words is "twenty-two billion, four hundred two million, four hundred forty thousand, forty".