722020740 has 96 divisors (see below), whose sum is σ = 2364257280. Its totient is φ = 161191296.

The previous prime is 722020709. The next prime is 722020751. The reversal of 722020740 is 47020227.

It is a self number, because there is not a number n which added to its sum of digits gives 722020740.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1930 + ... + 38049.

It is an arithmetic number, because the mean of its divisors is an integer number (24627680).

Almost surely, 2^722020740 is an apocalyptic number.

722020740 is a gapful number since it is divisible by the number (70) 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 722020740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1182128640).

722020740 is an abundant number, since it is smaller than the sum of its proper divisors (1642236540).

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

722020740 is a wasteful number, since it uses less digits than its factorization.

722020740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40041 (or 40039 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 24.

The square root of 722020740 is about 26870.4436137552. The cubic root of 722020740 is about 897.1186618210.

Adding to 722020740 its reverse (47020227), we get a palindrome (769040967).

The spelling of 722020740 in words is "seven hundred twenty-two million, twenty thousand, seven hundred forty".