1157322044 has 24 divisors (see below), whose sum is σ = 2059427328. Its totient is φ = 568995840.

The previous prime is 1157322043. The next prime is 1157322137. The reversal of 1157322044 is 4402237511.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1157321998 and 1157322016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1157322043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47324 + ... + 67484.

It is an arithmetic number, because the mean of its divisors is an integer number (85809472).

Almost surely, 2^1157322044 is an apocalyptic number.

It is an amenable number.

1157322044 is a deficient number, since it is larger than the sum of its proper divisors (902105284).

1157322044 is a wasteful number, since it uses less digits than its factorization.

1157322044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20405 (or 20403 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 1157322044 is about 34019.4362681100. The cubic root of 1157322044 is about 1049.9083953342.

Adding to 1157322044 its reverse (4402237511), we get a palindrome (5559559555).

The spelling of 1157322044 in words is "one billion, one hundred fifty-seven million, three hundred twenty-two thousand, forty-four".