1040340523 has 4 divisors (see below), whose sum is σ = 1040405680. Its totient is φ = 1040275368.

The previous prime is 1040340487. The next prime is 1040340529. The reversal of 1040340523 is 3250430401.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1040340523 - 2¹⁷ = 1040209451 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1040340494 and 1040340503.

It is not an unprimeable number, because it can be changed into a prime (1040340529) 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, 9418 + ... + 46576.

It is an arithmetic number, because the mean of its divisors is an integer number (260101420).

Almost surely, 2^1040340523 is an apocalyptic number.

1040340523 is a deficient number, since it is larger than the sum of its proper divisors (65157).

1040340523 is an equidigital number, since it uses as much as digits as its factorization.

1040340523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65156.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 1040340523 is about 32254.3101460875. The cubic root of 1040340523 is about 1013.2699699843.

Adding to 1040340523 its reverse (3250430401), we get a palindrome (4290770924).

The spelling of 1040340523 in words is "one billion, forty million, three hundred forty thousand, five hundred twenty-three".