22548399408 has 80 divisors (see below), whose sum is σ = 64902988800. Its totient is φ = 7495145280.

The previous prime is 22548399403. The next prime is 22548399421. The reversal of 22548399408 is 80499384522.

22548399408 is a `hidden beast` number, since 2 + 2 + 548 + 3 + 9 + 94 + 0 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (22548399403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82393 + ... + 227783.

It is an arithmetic number, because the mean of its divisors is an integer number (811287360).

Almost surely, 2^22548399408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22548399408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32451494400).

22548399408 is an abundant number, since it is smaller than the sum of its proper divisors (42354589392).

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

22548399408 is a wasteful number, since it uses less digits than its factorization.

22548399408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145767 (or 145755 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 54.

The spelling of 22548399408 in words is "twenty-two billion, five hundred forty-eight million, three hundred ninety-nine thousand, four hundred eight".