22400144648 has 32 divisors (see below), whose sum is σ = 48005213760. Its totient is φ = 9599081280.

The previous prime is 22400144647. The next prime is 22400144737. The reversal of 22400144648 is 84644100422.

It is not an unprimeable number, because it can be changed into a prime (22400144647) 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, 897863 + ... + 922473.

It is an arithmetic number, because the mean of its divisors is an integer number (1500162930).

Almost surely, 2^22400144648 is an apocalyptic number.

22400144648 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

22400144648 is an abundant number, since it is smaller than the sum of its proper divisors (25605069112).

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

22400144648 is a wasteful number, since it uses less digits than its factorization.

22400144648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40877 (or 40873 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 35.

The spelling of 22400144648 in words is "twenty-two billion, four hundred million, one hundred forty-four thousand, six hundred forty-eight".