940004243 has 4 divisors (see below), whose sum is σ = 940278840. Its totient is φ = 939729648.

The previous prime is 940004213. The next prime is 940004257. The reversal of 940004243 is 342400049.

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 940004243 - 2⁶ = 940004179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (940004213) 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, 132098 + ... + 139031.

It is an arithmetic number, because the mean of its divisors is an integer number (235069710).

Almost surely, 2^940004243 is an apocalyptic number.

940004243 is a deficient number, since it is larger than the sum of its proper divisors (274597).

940004243 is a wasteful number, since it uses less digits than its factorization.

940004243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274596.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 940004243 is about 30659.4886291340. The cubic root of 940004243 is about 979.5875826083.

The spelling of 940004243 in words is "nine hundred forty million, four thousand, two hundred forty-three".