340438046 has 16 divisors (see below), whose sum is σ = 552230448. Its totient is φ = 156470400.

The previous prime is 340438003. The next prime is 340438057. The reversal of 340438046 is 640834043.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 20900 + ... + 33431.

It is an arithmetic number, because the mean of its divisors is an integer number (34514403).

Almost surely, 2^340438046 is an apocalyptic number.

340438046 is a deficient number, since it is larger than the sum of its proper divisors (211792402).

340438046 is a wasteful number, since it uses less digits than its factorization.

340438046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54587.

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 340438046 is about 18450.9632810864. The cubic root of 340438046 is about 698.2528168508.

The spelling of 340438046 in words is "three hundred forty million, four hundred thirty-eight thousand, forty-six".