340997994 has 24 divisors (see below), whose sum is σ = 758798820. Its totient is φ = 110593728.

The previous prime is 340997963. The next prime is 340997999. The reversal of 340997994 is 499799043.

It can be written as a sum of positive squares in 2 ways, for example, as 238239225 + 102758769 = 15435^2 + 10137^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 340997994.

It is not an unprimeable number, because it can be changed into a prime (340997999) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 255339 + ... + 256670.

Almost surely, 2^340997994 is an apocalyptic number.

340997994 is an abundant number, since it is smaller than the sum of its proper divisors (417800826).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

340997994 is a wasteful number, since it uses less digits than its factorization.

340997994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512054 (or 512051 counting only the distinct ones).

The product of its (nonzero) digits is 2204496, while the sum is 54.

The square root of 340997994 is about 18466.1309970443. The cubic root of 340997994 is about 698.6354328227.

The spelling of 340997994 in words is "three hundred forty million, nine hundred ninety-seven thousand, nine hundred ninety-four".