1008438722 has 4 divisors (see below), whose sum is σ = 1512658086. Its totient is φ = 504219360.

The previous prime is 1008438719. The next prime is 1008438731. The reversal of 1008438722 is 2278348001.

1008438722 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1003559041 + 4879681 = 31679^2 + 2209^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252109679 + ... + 252109682.

Almost surely, 2^1008438722 is an apocalyptic number.

1008438722 is a deficient number, since it is larger than the sum of its proper divisors (504219364).

1008438722 is an equidigital number, since it uses as much as digits as its factorization.

1008438722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504219363.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 1008438722 is about 31755.9242032097. The cubic root of 1008438722 is about 1002.8050317732.

The spelling of 1008438722 in words is "one billion, eight million, four hundred thirty-eight thousand, seven hundred twenty-two".