722406421240 has 32 divisors (see below), whose sum is σ = 1857616512480. Its totient is φ = 247682201472.

The previous prime is 722406421213. The next prime is 722406421249. The reversal of 722406421240 is 42124604227.

It is a junction number, because it is equal to n+sod(n) for n = 722406421196 and 722406421205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722406421249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1290011187 + ... + 1290011746.

It is an arithmetic number, because the mean of its divisors is an integer number (58050516015).

Almost surely, 2^722406421240 is an apocalyptic number.

722406421240 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

722406421240 is an abundant number, since it is smaller than the sum of its proper divisors (1135210091240).

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

722406421240 is a wasteful number, since it uses less digits than its factorization.

722406421240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2580022951 (or 2580022947 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 34.

The spelling of 722406421240 in words is "seven hundred twenty-two billion, four hundred six million, four hundred twenty-one thousand, two hundred forty".