340354043 has 4 divisors (see below), whose sum is σ = 340390968. Its totient is φ = 340317120.

The previous prime is 340354019. The next prime is 340354057. The reversal of 340354043 is 340453043.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 340453043 = 7 ⋅48636149.

It is a cyclic number.

It is not a de Polignac number, because 340354043 - 2²⁰ = 339305467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340354843) 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, 8180 + ... + 27342.

It is an arithmetic number, because the mean of its divisors is an integer number (85097742).

Almost surely, 2^340354043 is an apocalyptic number.

340354043 is a deficient number, since it is larger than the sum of its proper divisors (36925).

340354043 is a wasteful number, since it uses less digits than its factorization.

340354043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36924.

The product of its (nonzero) digits is 8640, while the sum is 26.

The square root of 340354043 is about 18448.6867554306. The cubic root of 340354043 is about 698.1953808923.

The spelling of 340354043 in words is "three hundred forty million, three hundred fifty-four thousand, forty-three".