340409671 has 4 divisors (see below), whose sum is σ = 389039632. Its totient is φ = 291779712.

The previous prime is 340409669. The next prime is 340409701. The reversal of 340409671 is 176904043.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 340409671 - 2¹ = 340409669 is a prime.

It is a super-2 number, since 2×340409671² = 231757488220656482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340409611) 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, 24314970 + ... + 24314983.

It is an arithmetic number, because the mean of its divisors is an integer number (97259908).

Almost surely, 2^340409671 is an apocalyptic number.

340409671 is a deficient number, since it is larger than the sum of its proper divisors (48629961).

340409671 is an equidigital number, since it uses as much as digits as its factorization.

340409671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48629960.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 340409671 is about 18450.1943350199. The cubic root of 340409671 is about 698.2334168705.

The spelling of 340409671 in words is "three hundred forty million, four hundred nine thousand, six hundred seventy-one".