340105904 has 20 divisors (see below), whose sum is σ = 668238480. Its totient is φ = 167657280.

The previous prime is 340105901. The next prime is 340105919. The reversal of 340105904 is 409501043.

It is not an unprimeable number, because it can be changed into a prime (340105901) 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, 148559 + ... + 150830.

It is an arithmetic number, because the mean of its divisors is an integer number (33411924).

Almost surely, 2^340105904 is an apocalyptic number.

It is an amenable number.

340105904 is a deficient number, since it is larger than the sum of its proper divisors (328132576).

340105904 is a wasteful number, since it uses less digits than its factorization.

340105904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299468 (or 299462 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 340105904 is about 18441.9604163983. The cubic root of 340105904 is about 698.0256638703.

Adding to 340105904 its reverse (409501043), we get a palindrome (749606947).

The spelling of 340105904 in words is "three hundred forty million, one hundred five thousand, nine hundred four".