340668090 has 72 divisors (see below), whose sum is σ = 1030360500. Its totient is φ = 77865984.

The previous prime is 340668089. The next prime is 340668091. The reversal of 340668090 is 90866043.

It is an interprime number because it is at equal distance from previous prime (340668089) and next prime (340668091).

It can be written as a sum of positive squares in 2 ways, for example, as 277322409 + 63345681 = 16653^2 + 7959^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340668091) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 34215 + ... + 43034.

Almost surely, 2^340668090 is an apocalyptic number.

340668090 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

340668090 is an abundant number, since it is smaller than the sum of its proper divisors (689692410).

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

340668090 is a wasteful number, since it uses less digits than its factorization.

340668090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77276 (or 77266 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 340668090 is about 18457.1961575966. The cubic root of 340668090 is about 698.4100580933.

The spelling of 340668090 in words is "three hundred forty million, six hundred sixty-eight thousand, ninety".