1151042442 has 64 divisors (see below), whose sum is σ = 2547417600. Its totient is φ = 343830080.

The previous prime is 1151042441. The next prime is 1151042461. The reversal of 1151042442 is 2442401511.

It is not an unprimeable number, because it can be changed into a prime (1151042441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2746909 + ... + 2747327.

It is an arithmetic number, because the mean of its divisors is an integer number (39803400).

Almost surely, 2^1151042442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1151042442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1273708800).

1151042442 is an abundant number, since it is smaller than the sum of its proper divisors (1396375158).

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

1151042442 is a wasteful number, since it uses less digits than its factorization.

1151042442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931.

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 1151042442 is about 33927.0164028610. The cubic root of 1151042442 is about 1048.0060244055.

Adding to 1151042442 its reverse (2442401511), we get a palindrome (3593443953).

The spelling of 1151042442 in words is "one billion, one hundred fifty-one million, forty-two thousand, four hundred forty-two".