340432999 has 4 divisors (see below), whose sum is σ = 340578360. Its totient is φ = 340287640.

The previous prime is 340432993. The next prime is 340433011. The reversal of 340432999 is 999234043.

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 340432999 - 2⁹ = 340432487 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 (340432993) 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, 69109 + ... + 73870.

It is an arithmetic number, because the mean of its divisors is an integer number (85144590).

Almost surely, 2^340432999 is an apocalyptic number.

340432999 is a deficient number, since it is larger than the sum of its proper divisors (145361).

340432999 is a wasteful number, since it uses less digits than its factorization.

340432999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145360.

The product of its (nonzero) digits is 209952, while the sum is 43.

The square root of 340432999 is about 18450.8265126525. The cubic root of 340432999 is about 698.2493662970.

The spelling of 340432999 in words is "three hundred forty million, four hundred thirty-two thousand, nine hundred ninety-nine".