340427643 has 4 divisors (see below), whose sum is σ = 453903528. Its totient is φ = 226951760.

The previous prime is 340427573. The next prime is 340427651. The reversal of 340427643 is 346724043.

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 340427643 - 2¹³ = 340419451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (340427443) 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, 56737938 + ... + 56737943.

It is an arithmetic number, because the mean of its divisors is an integer number (113475882).

Almost surely, 2^340427643 is an apocalyptic number.

340427643 is a deficient number, since it is larger than the sum of its proper divisors (113475885).

340427643 is a wasteful number, since it uses less digits than its factorization.

340427643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113475884.

The product of its (nonzero) digits is 48384, while the sum is 33.

The square root of 340427643 is about 18450.6813695321. The cubic root of 340427643 is about 698.2457044475.

The spelling of 340427643 in words is "three hundred forty million, four hundred twenty-seven thousand, six hundred forty-three".