1040340434 has 8 divisors (see below), whose sum is σ = 1783440768. Its totient is φ = 445860180.

The previous prime is 1040340419. The next prime is 1040340443. The reversal of 1040340434 is 4340430401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37155002 + ... + 37155029.

It is an arithmetic number, because the mean of its divisors is an integer number (222930096).

Almost surely, 2^1040340434 is an apocalyptic number.

1040340434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1040340434 is a deficient number, since it is larger than the sum of its proper divisors (743100334).

1040340434 is an equidigital number, since it uses as much as digits as its factorization.

1040340434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74310040.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 1040340434 is about 32254.3087664269. The cubic root of 1040340434 is about 1013.2699410896.

Adding to 1040340434 its reverse (4340430401), we get a palindrome (5380770835).

The spelling of 1040340434 in words is "one billion, forty million, three hundred forty thousand, four hundred thirty-four".