340490 has 16 divisors (see below), whose sum is σ = 622080. Its totient is φ = 134160.

The previous prime is 340481. The next prime is 340519. The reversal of 340490 is 94043.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 575 + ... + 1005.

It is an arithmetic number, because the mean of its divisors is an integer number (38880).

2³⁴⁰⁴⁹⁰ is an apocalyptic number.

340490 is a deficient number, since it is larger than the sum of its proper divisors (281590).

340490 is a wasteful number, since it uses less digits than its factorization.

340490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 340490 is about 583.5152097418. The cubic root of 340490 is about 69.8288334994.

The spelling of 340490 in words is "three hundred forty thousand, four hundred ninety".