340430688 has 120 divisors (see below), whose sum is σ = 1078319088. Its totient is φ = 104737536.

The previous prime is 340430687. The next prime is 340430689. The reversal of 340430688 is 886034043.

340430688 is a `hidden beast` number, since 340 + 4 + 306 + 8 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (340430687) and next prime (340430689).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340430683) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 28645 + ... + 38747.

Almost surely, 2^340430688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 340430688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (539159544).

340430688 is an abundant number, since it is smaller than the sum of its proper divisors (737888400).

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

340430688 is a wasteful number, since it uses less digits than its factorization.

340430688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10138 (or 10121 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 340430688 is about 18450.7638866254. The cubic root of 340430688 is about 698.2477862916.

The spelling of 340430688 in words is "three hundred forty million, four hundred thirty thousand, six hundred eighty-eight".