7940541 has 16 divisors (see below), whose sum is σ = 12214400. Its totient is φ = 4494528.

The previous prime is 7940539. The next prime is 7940549. The reversal of 7940541 is 1450497.

It is a happy number.

It is not a de Polignac number, because 7940541 - 2¹ = 7940539 is a prime.

It is a Duffinian number.

7940541 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 7940499 and 7940508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7940549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 555 + ... + 4023.

It is an arithmetic number, because the mean of its divisors is an integer number (763400).

Almost surely, 2^7940541 is an apocalyptic number.

It is an amenable number.

7940541 is a deficient number, since it is larger than the sum of its proper divisors (4273859).

7940541 is a wasteful number, since it uses less digits than its factorization.

7940541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3588.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 7940541 is about 2817.8965559438. The cubic root of 7940541 is about 199.5032756794.

The spelling of 7940541 in words is "seven million, nine hundred forty thousand, five hundred forty-one".