340488681 has 16 divisors (see below), whose sum is σ = 505767360. Its totient is φ = 202305600.

The previous prime is 340488679. The next prime is 340488751. The reversal of 340488681 is 186884043.

It is not a de Polignac number, because 340488681 - 2¹ = 340488679 is a prime.

It is a super-2 number, since 2×340488681² = 231865083778239522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (340488601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149395 + ... + 151656.

It is an arithmetic number, because the mean of its divisors is an integer number (31610460).

Almost surely, 2^340488681 is an apocalyptic number.

It is an amenable number.

340488681 is a deficient number, since it is larger than the sum of its proper divisors (165278679).

340488681 is a wasteful number, since it uses less digits than its factorization.

340488681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301096.

The product of its (nonzero) digits is 147456, while the sum is 42.

The square root of 340488681 is about 18452.3353806503. The cubic root of 340488681 is about 698.2874333095.

The spelling of 340488681 in words is "three hundred forty million, four hundred eighty-eight thousand, six hundred eighty-one".