340446406 has 4 divisors (see below), whose sum is σ = 510669612. Its totient is φ = 170223202.

The previous prime is 340446383. The next prime is 340446439. The reversal of 340446406 is 604644043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 604644043 = 229 ⋅2640367.

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 as a sum of consecutive naturals, namely, 85111600 + ... + 85111603.

It is an arithmetic number, because the mean of its divisors is an integer number (127667403).

Almost surely, 2^340446406 is an apocalyptic number.

340446406 is a deficient number, since it is larger than the sum of its proper divisors (170223206).

340446406 is a wasteful number, since it uses less digits than its factorization.

340446406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170223205.

The product of its (nonzero) digits is 27648, while the sum is 31.

The square root of 340446406 is about 18451.1898261332. The cubic root of 340446406 is about 698.2585323751.

The spelling of 340446406 in words is "three hundred forty million, four hundred forty-six thousand, four hundred six".