22439541840 has 40 divisors (see below), whose sum is σ = 69562580448. Its totient is φ = 5983877760.

The previous prime is 22439541829. The next prime is 22439541841. The reversal of 22439541840 is 4814593422.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×22439541840² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22439541792 and 22439541801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22439541841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46748806 + ... + 46749285.

Almost surely, 2^22439541840 is an apocalyptic number.

22439541840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22439541840 is an abundant number, since it is smaller than the sum of its proper divisors (47123038608).

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

22439541840 is a wasteful number, since it uses less digits than its factorization.

22439541840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93498107 (or 93498101 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 42.

The spelling of 22439541840 in words is "twenty-two billion, four hundred thirty-nine million, five hundred forty-one thousand, eight hundred forty".