940223993 has 8 divisors (see below), whose sum is σ = 973231680. Its totient is φ = 907255440.

The previous prime is 940223989. The next prime is 940224001. The reversal of 940223993 is 399322049.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 940223993 - 2² = 940223989 is a prime.

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 940223993.

It is not an unprimeable number, because it can be changed into a prime (940223903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44246 + ... + 61952.

It is an arithmetic number, because the mean of its divisors is an integer number (121653960).

Almost surely, 2^940223993 is an apocalyptic number.

It is an amenable number.

940223993 is a deficient number, since it is larger than the sum of its proper divisors (33007687).

940223993 is a wasteful number, since it uses less digits than its factorization.

940223993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19567.

The product of its (nonzero) digits is 104976, while the sum is 41.

The square root of 940223993 is about 30663.0721389752. The cubic root of 940223993 is about 979.6639111996.

The spelling of 940223993 in words is "nine hundred forty million, two hundred twenty-three thousand, nine hundred ninety-three".