940590643 has 8 divisors (see below), whose sum is σ = 970987248. Its totient is φ = 910581504.

The previous prime is 940590641. The next prime is 940590647. The reversal of 940590643 is 346095049.

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 940590643 - 2¹ = 940590641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 940590596 and 940590605.

It is not an unprimeable number, because it can be changed into a prime (940590641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91930 + ... + 101647.

It is an arithmetic number, because the mean of its divisors is an integer number (121373406).

Almost surely, 2^940590643 is an apocalyptic number.

940590643 is a deficient number, since it is larger than the sum of its proper divisors (30396605).

940590643 is a wasteful number, since it uses less digits than its factorization.

940590643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193733.

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 940590643 is about 30669.0502461358. The cubic root of 940590643 is about 979.7912379839.

The spelling of 940590643 in words is "nine hundred forty million, five hundred ninety thousand, six hundred forty-three".