6940045 has 16 divisors (see below), whose sum is σ = 9636480. Its totient is φ = 4699584.

The previous prime is 6940033. The next prime is 6940049. The reversal of 6940045 is 5400496.

It is a cyclic number.

It is not a de Polignac number, because 6940045 - 2⁹ = 6939533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6939995 and 6940022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6940049) 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 15 ways as a sum of consecutive naturals, for example, 1711 + ... + 4099.

It is an arithmetic number, because the mean of its divisors is an integer number (602280).

Almost surely, 2^6940045 is an apocalyptic number.

It is an amenable number.

6940045 is a deficient number, since it is larger than the sum of its proper divisors (2696435).

6940045 is a wasteful number, since it uses less digits than its factorization.

6940045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2484.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 6940045 is about 2634.3965153333. The cubic root of 6940045 is about 190.7454097276.

The spelling of 6940045 in words is "six million, nine hundred forty thousand, forty-five".