722120000 has 140 divisors (see below), whose sum is σ = 2047219680. Its totient is φ = 247488000.

The previous prime is 722119997. The next prime is 722120017. The reversal of 722120000 is 21227.

It is a tau number, because it is divible by the number of its divisors (140).

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 278711 + ... + 281289.

Almost surely, 2^722120000 is an apocalyptic number.

722120000 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 722120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1023609840).

722120000 is an abundant number, since it is smaller than the sum of its proper divisors (1325099680).

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

722120000 is an equidigital number, since it uses as much as digits as its factorization.

722120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2618 (or 2593 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 722120000 is about 26872.2905610966. The cubic root of 722120000 is about 897.1597704822.

Adding to 722120000 its reverse (21227), we get a palindrome (722141227).

The spelling of 722120000 in words is "seven hundred twenty-two million, one hundred twenty thousand".