340860690 has 128 divisors (see below), whose sum is σ = 958003200. Its totient is φ = 86074560.

The previous prime is 340860677. The next prime is 340860697. The reversal of 340860690 is 96068043.

340860690 is a `hidden beast` number, since 3 + 40 + 8 + 606 + 9 + 0 = 666.

It is a super-2 number, since 2×340860690² = 232372019974552200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (340860697) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 813301 + ... + 813719.

It is an arithmetic number, because the mean of its divisors is an integer number (7484400).

Almost surely, 2^340860690 is an apocalyptic number.

340860690 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 340860690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (479001600).

340860690 is an abundant number, since it is smaller than the sum of its proper divisors (617142510).

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

340860690 is a wasteful number, since it uses less digits than its factorization.

340860690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589 (or 583 counting only the distinct ones).

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

The square root of 340860690 is about 18462.4128975603. The cubic root of 340860690 is about 698.5416509247.

The spelling of 340860690 in words is "three hundred forty million, eight hundred sixty thousand, six hundred ninety".