722147454 has 128 divisors (see below), whose sum is σ = 1961625600. Its totient is φ = 192222720.

The previous prime is 722147429. The next prime is 722147467. The reversal of 722147454 is 454741227.

722147454 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 699919 + ... + 700949.

It is an arithmetic number, because the mean of its divisors is an integer number (15325200).

Almost surely, 2^722147454 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 722147454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (980812800).

722147454 is an abundant number, since it is smaller than the sum of its proper divisors (1239478146).

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

722147454 is a wasteful number, since it uses less digits than its factorization.

722147454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1175 (or 1169 counting only the distinct ones).

The product of its digits is 62720, while the sum is 36.

The square root of 722147454 is about 26872.8013798338. The cubic root of 722147454 is about 897.1711399279.

The spelling of 722147454 in words is "seven hundred twenty-two million, one hundred forty-seven thousand, four hundred fifty-four".