340681431 has 8 divisors (see below), whose sum is σ = 454627440. Its totient is φ = 226928192.

The previous prime is 340681421. The next prime is 340681447. The reversal of 340681431 is 134186043.

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

It is a cyclic number.

It is not a de Polignac number, because 340681431 - 2¹⁰ = 340680407 is a prime.

It is a super-2 number, since 2×340681431² = 232127674856415522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340681421) 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, 44016 + ... + 51173.

It is an arithmetic number, because the mean of its divisors is an integer number (56828430).

Almost surely, 2^340681431 is an apocalyptic number.

340681431 is a deficient number, since it is larger than the sum of its proper divisors (113946009).

340681431 is a wasteful number, since it uses less digits than its factorization.

340681431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96385.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 340681431 is about 18457.5575578135. The cubic root of 340681431 is about 698.4191748526.

The spelling of 340681431 in words is "three hundred forty million, six hundred eighty-one thousand, four hundred thirty-one".