340460491 has 4 divisors (see below), whose sum is σ = 389097712. Its totient is φ = 291823272.

The previous prime is 340460489. The next prime is 340460509. The reversal of 340460491 is 194064043.

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 340460491 - 2¹ = 340460489 is a prime.

It is a super-2 number, since 2×340460491² = 231826691863922162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340460401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24318600 + ... + 24318613.

It is an arithmetic number, because the mean of its divisors is an integer number (97274428).

Almost surely, 2^340460491 is an apocalyptic number.

340460491 is a deficient number, since it is larger than the sum of its proper divisors (48637221).

340460491 is an equidigital number, since it uses as much as digits as its factorization.

340460491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48637220.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 340460491 is about 18451.5715048881. The cubic root of 340460491 is about 698.2681617281.

The spelling of 340460491 in words is "three hundred forty million, four hundred sixty thousand, four hundred ninety-one".