340756091 has 4 divisors (see below), whose sum is σ = 366968112. Its totient is φ = 314544072.

The previous prime is 340756081. The next prime is 340756099. The reversal of 340756091 is 190657043.

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

It is a cyclic number.

It is not a de Polignac number, because 340756091 - 2²² = 336561787 is a prime.

It is a super-2 number, since 2×340756091² = 232229427107200562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340756099) 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, 13105991 + ... + 13106016.

It is an arithmetic number, because the mean of its divisors is an integer number (91742028).

Almost surely, 2^340756091 is an apocalyptic number.

340756091 is a deficient number, since it is larger than the sum of its proper divisors (26212021).

340756091 is a wasteful number, since it uses less digits than its factorization.

340756091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26212020.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 340756091 is about 18459.5799247979. The cubic root of 340756091 is about 698.4701904175.

The spelling of 340756091 in words is "three hundred forty million, seven hundred fifty-six thousand, ninety-one".