22437869440 has 128 divisors (see below), whose sum is σ = 63281387520. Its totient is φ = 7444776960.

The previous prime is 22437869429. The next prime is 22437869449. The reversal of 22437869440 is 4496873422.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22437869449) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 58099 + ... + 219661.

It is an arithmetic number, because the mean of its divisors is an integer number (494385840).

Almost surely, 2^22437869440 is an apocalyptic number.

22437869440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22437869440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31640693760).

22437869440 is an abundant number, since it is smaller than the sum of its proper divisors (40843518080).

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

22437869440 is a wasteful number, since it uses less digits than its factorization.

22437869440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161620 (or 161608 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 49.

The spelling of 22437869440 in words is "twenty-two billion, four hundred thirty-seven million, eight hundred sixty-nine thousand, four hundred forty".