8440741 has 4 divisors (see below), whose sum is σ = 8453484. Its totient is φ = 8428000.

The previous prime is 8440739. The next prime is 8440787. The reversal of 8440741 is 1470448.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6395841 + 2044900 = 2529^2 + 1430^2 .

It is a cyclic number.

It is not a de Polignac number, because 8440741 - 2¹ = 8440739 is a prime.

It is a super-2 number, since 2×8440741² = 142492217258162, which contains 22 as substring.

It is a Duffinian number.

8440741 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8440441) 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, 5320 + ... + 6721.

It is an arithmetic number, because the mean of its divisors is an integer number (2113371).

Almost surely, 2^8440741 is an apocalyptic number.

It is an amenable number.

8440741 is a deficient number, since it is larger than the sum of its proper divisors (12743).

8440741 is a wasteful number, since it uses less digits than its factorization.

8440741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12742.

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 8440741 is about 2905.2953378271. The cubic root of 8440741 is about 203.6073843596.

It can be divided in two parts, 84407 and 41, that added together give a palindrome (84448).

The spelling of 8440741 in words is "eight million, four hundred forty thousand, seven hundred forty-one".