22780040028 has 48 divisors (see below), whose sum is σ = 54181491840. Its totient is φ = 7446613824.

The previous prime is 22780039993. The next prime is 22780040047. The reversal of 22780040028 is 82004008722.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1607751 + ... + 1621857.

It is an arithmetic number, because the mean of its divisors is an integer number (1128781080).

Almost surely, 2^22780040028 is an apocalyptic number.

It is an amenable number.

22780040028 is an abundant number, since it is smaller than the sum of its proper divisors (31401451812).

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

22780040028 is a wasteful number, since it uses less digits than its factorization.

22780040028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16706 (or 16704 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 33.

The spelling of 22780040028 in words is "twenty-two billion, seven hundred eighty million, forty thousand, twenty-eight".