3940743 has 8 divisors (see below), whose sum is σ = 5270400. Its totient is φ = 2619128.

The previous prime is 3940721. The next prime is 3940747. The reversal of 3940743 is 3470493.

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 3940743 - 2⁶ = 3940679 is a prime.

3940743 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3940743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3940747) 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, 753 + ... + 2906.

It is an arithmetic number, because the mean of its divisors is an integer number (658800).

Almost surely, 2^3940743 is an apocalyptic number.

3940743 is a deficient number, since it is larger than the sum of its proper divisors (1329657).

3940743 is a wasteful number, since it uses less digits than its factorization.

3940743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4021.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 3940743 is about 1985.1304743014. The cubic root of 3940743 is about 157.9523303289.

The spelling of 3940743 in words is "three million, nine hundred forty thousand, seven hundred forty-three".