340308983 has 4 divisors (see below), whose sum is σ = 388924560. Its totient is φ = 291693408.

The previous prime is 340308977. The next prime is 340309117. The reversal of 340308983 is 389803043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 389803043 = 7 ⋅55686149.

It is a cyclic number.

It is not a de Polignac number, because 340308983 - 2⁴ = 340308967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340308953) 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, 24307778 + ... + 24307791.

It is an arithmetic number, because the mean of its divisors is an integer number (97231140).

Almost surely, 2^340308983 is an apocalyptic number.

340308983 is a deficient number, since it is larger than the sum of its proper divisors (48615577).

340308983 is an equidigital number, since it uses as much as digits as its factorization.

340308983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48615576.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 340308983 is about 18447.4654898715. The cubic root of 340308983 is about 698.1645678091.

The spelling of 340308983 in words is "three hundred forty million, three hundred eight thousand, nine hundred eighty-three".