1157420342 has 16 divisors (see below), whose sum is σ = 1884406272. Its totient is φ = 529986240.

The previous prime is 1157420281. The next prime is 1157420351. The reversal of 1157420342 is 2430247511.

It is a congruent number.

It is an unprimeable number.

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, 171959 + ... + 178562.

It is an arithmetic number, because the mean of its divisors is an integer number (117775392).

Almost surely, 2^1157420342 is an apocalyptic number.

1157420342 is a deficient number, since it is larger than the sum of its proper divisors (726985930).

1157420342 is a wasteful number, since it uses less digits than its factorization.

1157420342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350663.

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

The square root of 1157420342 is about 34020.8809703688. The cubic root of 1157420342 is about 1049.9381194069.

Adding to 1157420342 its reverse (2430247511), we get a palindrome (3587667853).

The spelling of 1157420342 in words is "one billion, one hundred fifty-seven million, four hundred twenty thousand, three hundred forty-two".