1159820722 has 32 divisors (see below), whose sum is σ = 1866006720. Its totient is φ = 539582400.

The previous prime is 1159820707. The next prime is 1159820729. The reversal of 1159820722 is 2270289511.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (1159820729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227097 + ... + 232147.

It is an arithmetic number, because the mean of its divisors is an integer number (58312710).

Almost surely, 2^1159820722 is an apocalyptic number.

1159820722 is a deficient number, since it is larger than the sum of its proper divisors (706185998).

1159820722 is a wasteful number, since it uses less digits than its factorization.

1159820722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5226.

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 1159820722 is about 34056.1407384924. The cubic root of 1159820722 is about 1050.6634422427.

The spelling of 1159820722 in words is "one billion, one hundred fifty-nine million, eight hundred twenty thousand, seven hundred twenty-two".