1340004434 has 16 divisors (see below), whose sum is σ = 2019989760. Its totient is φ = 666681840.

The previous prime is 1340004433. The next prime is 1340004439. The reversal of 1340004434 is 4344000431.

It is a super-2 number, since 2×1340004434² = 3591223766279320712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1340004433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 559712 + ... + 562100.

It is an arithmetic number, because the mean of its divisors is an integer number (126249360).

Almost surely, 2^1340004434 is an apocalyptic number.

1340004434 is a deficient number, since it is larger than the sum of its proper divisors (679985326).

1340004434 is a wasteful number, since it uses less digits than its factorization.

1340004434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3665.

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

The square root of 1340004434 is about 36606.0709992209. The cubic root of 1340004434 is about 1102.4749874605.

Adding to 1340004434 its reverse (4344000431), we get a palindrome (5684004865).

The spelling of 1340004434 in words is "one billion, three hundred forty million, four thousand, four hundred thirty-four".