32722808240 has 20 divisors (see below), whose sum is σ = 76080529344. Its totient is φ = 13089123264.

The previous prime is 32722808137. The next prime is 32722808243. The reversal of 32722808240 is 4280822723.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×32722808240² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 32722808194 and 32722808203.

It is not an unprimeable number, because it can be changed into a prime (32722808243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204517472 + ... + 204517631.

Almost surely, 2^32722808240 is an apocalyptic number.

It is an amenable number.

32722808240 is an abundant number, since it is smaller than the sum of its proper divisors (43357721104).

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

32722808240 is a wasteful number, since it uses less digits than its factorization.

32722808240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409035116 (or 409035110 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 38.

The spelling of 32722808240 in words is "thirty-two billion, seven hundred twenty-two million, eight hundred eight thousand, two hundred forty".