1142318398 has 16 divisors (see below), whose sum is σ = 1846802160. Its totient is φ = 526790016.

The previous prime is 1142318377. The next prime is 1142318407. The reversal of 1142318398 is 8938132411.

It is a self number, because there is not a number n which added to its sum of digits gives 1142318398.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15286 + ... + 50182.

It is an arithmetic number, because the mean of its divisors is an integer number (115425135).

Almost surely, 2^1142318398 is an apocalyptic number.

1142318398 is a deficient number, since it is larger than the sum of its proper divisors (704483762).

1142318398 is a wasteful number, since it uses less digits than its factorization.

1142318398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36171.

The product of its digits is 41472, while the sum is 40.

The square root of 1142318398 is about 33798.2011059760. The cubic root of 1142318398 is about 1045.3516053168.

The spelling of 1142318398 in words is "one billion, one hundred forty-two million, three hundred eighteen thousand, three hundred ninety-eight".