3940453 has 4 divisors (see below), whose sum is σ = 4298688. Its totient is φ = 3582220.

The previous prime is 3940451. The next prime is 3940457. The reversal of 3940453 is 3540493.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3940453 - 2¹ = 3940451 is a prime.

It is a Duffinian number.

3940453 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3940451) 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, 179101 + ... + 179122.

It is an arithmetic number, because the mean of its divisors is an integer number (1074672).

Almost surely, 2^3940453 is an apocalyptic number.

It is an amenable number.

3940453 is a deficient number, since it is larger than the sum of its proper divisors (358235).

3940453 is a wasteful number, since it uses less digits than its factorization.

3940453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358234.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 3940453 is about 1985.0574298997. The cubic root of 3940453 is about 157.9484556535.

The spelling of 3940453 in words is "three million, nine hundred forty thousand, four hundred fifty-three".