340479949 has 4 divisors (see below), whose sum is σ = 348784380. Its totient is φ = 332175520.

The previous prime is 340479947. The next prime is 340479959. The reversal of 340479949 is 949974043.

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 44983849 + 295496100 = 6707^2 + 17190^2 .

It is a cyclic number.

It is not a de Polignac number, because 340479949 - 2¹ = 340479947 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 (340479941) 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, 4152154 + ... + 4152235.

It is an arithmetic number, because the mean of its divisors is an integer number (87196095).

Almost surely, 2^340479949 is an apocalyptic number.

It is an amenable number.

340479949 is a deficient number, since it is larger than the sum of its proper divisors (8304431).

340479949 is an equidigital number, since it uses as much as digits as its factorization.

340479949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8304430.

The product of its (nonzero) digits is 979776, while the sum is 49.

The square root of 340479949 is about 18452.0987695167. The cubic root of 340479949 is about 698.2814639500.

The spelling of 340479949 in words is "three hundred forty million, four hundred seventy-nine thousand, nine hundred forty-nine".