340356870 has 128 divisors (see below), whose sum is σ = 1048135680. Its totient is φ = 76982400.

The previous prime is 340356859. The next prime is 340356871. The reversal of 340356870 is 78653043.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340356871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 189999 + ... + 191781.

It is an arithmetic number, because the mean of its divisors is an integer number (8188560).

Almost surely, 2^340356870 is an apocalyptic number.

340356870 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 340356870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (524067840).

340356870 is an abundant number, since it is smaller than the sum of its proper divisors (707778810).

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

340356870 is a wasteful number, since it uses less digits than its factorization.

340356870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1907 (or 1901 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 340356870 is about 18448.7633731912. The cubic root of 340356870 is about 698.1973139705.

The spelling of 340356870 in words is "three hundred forty million, three hundred fifty-six thousand, eight hundred seventy".