340203666 has 32 divisors (see below), whose sum is σ = 743447808. Its totient is φ = 102927440.

The previous prime is 340203629. The next prime is 340203673. The reversal of 340203666 is 666302043.

It is a Curzon 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 15 ways as a sum of consecutive naturals, for example, 41305 + ... + 48851.

It is an arithmetic number, because the mean of its divisors is an integer number (23232744).

Almost surely, 2^340203666 is an apocalyptic number.

340203666 is an abundant number, since it is smaller than the sum of its proper divisors (403244142).

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

340203666 is a wasteful number, since it uses less digits than its factorization.

340203666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8246.

The product of its (nonzero) digits is 15552, while the sum is 30.

The square root of 340203666 is about 18444.6107576170. The cubic root of 340203666 is about 698.0925389688.

The spelling of 340203666 in words is "three hundred forty million, two hundred three thousand, six hundred sixty-six".