1143869298 has 32 divisors (see below), whose sum is σ = 2687694912. Its totient is φ = 319963200.

The previous prime is 1143869297. The next prime is 1143869317. The reversal of 1143869298 is 8929683411.

It is a self number, because there is not a number n which added to its sum of digits gives 1143869298.

It is not an unprimeable number, because it can be changed into a prime (1143869297) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 665733 + ... + 667448.

It is an arithmetic number, because the mean of its divisors is an integer number (83990466).

Almost surely, 2^1143869298 is an apocalyptic number.

1143869298 is an abundant number, since it is smaller than the sum of its proper divisors (1543825614).

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

1143869298 is a wasteful number, since it uses less digits than its factorization.

1143869298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333210.

The product of its digits is 746496, while the sum is 51.

The square root of 1143869298 is about 33821.1368525660. The cubic root of 1143869298 is about 1045.8244748352.

The spelling of 1143869298 in words is "one billion, one hundred forty-three million, eight hundred sixty-nine thousand, two hundred ninety-eight".