340039401 has 24 divisors (see below), whose sum is σ = 492885120. Its totient is φ = 207288480.

The previous prime is 340039393. The next prime is 340039411. The reversal of 340039401 is 104930043.

It is not a de Polignac number, because 340039401 - 2³ = 340039393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (340039411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1422640 + ... + 1422878.

It is an arithmetic number, because the mean of its divisors is an integer number (20536880).

Almost surely, 2^340039401 is an apocalyptic number.

It is an amenable number.

340039401 is a deficient number, since it is larger than the sum of its proper divisors (152845719).

340039401 is a wasteful number, since it uses less digits than its factorization.

340039401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637 (or 446 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 340039401 is about 18440.1572932554. The cubic root of 340039401 is about 697.9801644870.

Adding to 340039401 its reverse (104930043), we get a palindrome (444969444).

The spelling of 340039401 in words is "three hundred forty million, thirty-nine thousand, four hundred one".