1157232444 has 12 divisors (see below), whose sum is σ = 2700209064. Its totient is φ = 385744144.

The previous prime is 1157232389. The next prime is 1157232457. The reversal of 1157232444 is 4442327511.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48218007 + ... + 48218030.

It is an arithmetic number, because the mean of its divisors is an integer number (225017422).

Almost surely, 2^1157232444 is an apocalyptic number.

It is an amenable number.

1157232444 is an abundant number, since it is smaller than the sum of its proper divisors (1542976620).

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

1157232444 is a wasteful number, since it uses less digits than its factorization.

1157232444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96436044 (or 96436042 counting only the distinct ones).

The product of its digits is 26880, while the sum is 33.

The square root of 1157232444 is about 34018.1193483708. The cubic root of 1157232444 is about 1049.8812999604.

Adding to 1157232444 its reverse (4442327511), we get a palindrome (5599559955).

The spelling of 1157232444 in words is "one billion, one hundred fifty-seven million, two hundred thirty-two thousand, four hundred forty-four".