722378241040 has 20 divisors (see below), whose sum is σ = 1679529410604. Its totient is φ = 288951296384.

The previous prime is 722378241029. The next prime is 722378241047. The reversal of 722378241040 is 40142873227.

It can be written as a sum of positive squares in 2 ways, for example, as 186126667776 + 536251573264 = 431424^2 + 732292^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 722378240984 and 722378241002.

It is not an unprimeable number, because it can be changed into a prime (722378241047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4514863927 + ... + 4514864086.

Almost surely, 2^722378241040 is an apocalyptic number.

It is an amenable number.

722378241040 is an abundant number, since it is smaller than the sum of its proper divisors (957151169564).

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

722378241040 is a wasteful number, since it uses less digits than its factorization.

722378241040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9029728026 (or 9029728020 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 40.

The spelling of 722378241040 in words is "seven hundred twenty-two billion, three hundred seventy-eight million, two hundred forty-one thousand, forty".