940644293 has 8 divisors (see below), whose sum is σ = 955387800. Its totient is φ = 925993728.

The previous prime is 940644277. The next prime is 940644359. The reversal of 940644293 is 392446049.

It can be written as a sum of positive squares in 4 ways, for example, as 436057924 + 504586369 = 20882^2 + 22463^2 .

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 940644293 - 2⁴ = 940644277 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 940644293.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (940644193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2696 + ... + 43457.

It is an arithmetic number, because the mean of its divisors is an integer number (119423475).

Almost surely, 2^940644293 is an apocalyptic number.

It is an amenable number.

940644293 is a deficient number, since it is larger than the sum of its proper divisors (14743507).

940644293 is a wasteful number, since it uses less digits than its factorization.

940644293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46471.

The product of its (nonzero) digits is 186624, while the sum is 41.

The square root of 940644293 is about 30669.9248939413. The cubic root of 940644293 is about 979.8098662791.

The spelling of 940644293 in words is "nine hundred forty million, six hundred forty-four thousand, two hundred ninety-three".