942890243 has 4 divisors (see below), whose sum is σ = 965887608. Its totient is φ = 919892880.

The previous prime is 942890239. The next prime is 942890281. The reversal of 942890243 is 342098249.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 942890243 - 2² = 942890239 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 22997323 = 942890243 / (9 + 4 + 2 + 8 + 9 + 0 + 2 + 4 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 942890243.

It is not an unprimeable number, because it can be changed into a prime (942890213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11498621 + ... + 11498702.

It is an arithmetic number, because the mean of its divisors is an integer number (241471902).

Almost surely, 2^942890243 is an apocalyptic number.

942890243 is a deficient number, since it is larger than the sum of its proper divisors (22997365).

942890243 is a wasteful number, since it uses less digits than its factorization.

942890243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22997364.

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 942890243 is about 30706.5179237243. The cubic root of 942890243 is about 980.5890679621.

The spelling of 942890243 in words is "nine hundred forty-two million, eight hundred ninety thousand, two hundred forty-three".