340923445 has 4 divisors (see below), whose sum is σ = 409108140. Its totient is φ = 272738752.

The previous prime is 340923437. The next prime is 340923509. The reversal of 340923445 is 544329043.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 163660849 + 177262596 = 12793^2 + 13314^2 .

It is a cyclic number.

It is not a de Polignac number, because 340923445 - 2³ = 340923437 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 340923445.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34092340 + ... + 34092349.

It is an arithmetic number, because the mean of its divisors is an integer number (102277035).

Almost surely, 2^340923445 is an apocalyptic number.

It is an amenable number.

340923445 is a deficient number, since it is larger than the sum of its proper divisors (68184695).

340923445 is an equidigital number, since it uses as much as digits as its factorization.

340923445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68184694.

The product of its (nonzero) digits is 51840, while the sum is 34.

The square root of 340923445 is about 18464.1123534277. The cubic root of 340923445 is about 698.5845172067.

The spelling of 340923445 in words is "three hundred forty million, nine hundred twenty-three thousand, four hundred forty-five".