22278708480 has 432 divisors, whose sum is σ = 83382445440. Its totient is φ = 5054644224.

The previous prime is 22278708467. The next prime is 22278708497. The reversal of 22278708480 is 8480787222.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31422366 + ... + 31423074.

It is an arithmetic number, because the mean of its divisors is an integer number (193014920).

Almost surely, 2^22278708480 is an apocalyptic number.

22278708480 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 22278708480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41691222720).

22278708480 is an abundant number, since it is smaller than the sum of its proper divisors (61103736960).

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

22278708480 is a wasteful number, since it uses less digits than its factorization.

22278708480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914 (or 893 counting only the distinct ones).

The product of its (nonzero) digits is 802816, while the sum is 48.

The spelling of 22278708480 in words is "twenty-two billion, two hundred seventy-eight million, seven hundred eight thousand, four hundred eighty".