340688166 has 96 divisors (see below), whose sum is σ = 857445120. Its totient is φ = 87873984.

The previous prime is 340688149. The next prime is 340688189. The reversal of 340688166 is 661886043.

It is a happy number.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2450925 + ... + 2451063.

It is an arithmetic number, because the mean of its divisors is an integer number (8931720).

Almost surely, 2^340688166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 340688166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (428722560).

340688166 is an abundant number, since it is smaller than the sum of its proper divisors (516756954).

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

340688166 is a wasteful number, since it uses less digits than its factorization.

340688166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298 (or 231 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 340688166 is about 18457.7400025030. The cubic root of 340688166 is about 698.4237772189.

The spelling of 340688166 in words is "three hundred forty million, six hundred eighty-eight thousand, one hundred sixty-six".