340690 has 32 divisors (see below), whose sum is σ = 728064. Its totient is φ = 112320.

The previous prime is 340687. The next prime is 340693. The reversal of 340690 is 96043.

340690 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (340687) and next prime (340693).

It is a super-3 number, since 3×340690³ = 118631333851527000, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340693) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2092 + ... + 2248.

It is an arithmetic number, because the mean of its divisors is an integer number (22752).

2³⁴⁰⁶⁹⁰ is an apocalyptic number.

340690 is an abundant number, since it is smaller than the sum of its proper divisors (387374).

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

340690 is a wasteful number, since it uses less digits than its factorization.

340690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 340690 is about 583.6865597219. The cubic root of 340690 is about 69.8425030473.

The spelling of 340690 in words is "three hundred forty thousand, six hundred ninety".