340585840 has 160 divisors (see below), whose sum is σ = 975937536. Its totient is φ = 107965440.

The previous prime is 340585781. The next prime is 340585841. The reversal of 340585840 is 48585043.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 340585840.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340585841) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 398854 + ... + 399706.

Almost surely, 2^340585840 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 340585840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (487968768).

340585840 is an abundant number, since it is smaller than the sum of its proper divisors (635351696).

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

340585840 is a wasteful number, since it uses less digits than its factorization.

340585840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927 (or 921 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 37.

The square root of 340585840 is about 18454.9678948515. The cubic root of 340585840 is about 698.3538461452.

The spelling of 340585840 in words is "three hundred forty million, five hundred eighty-five thousand, eight hundred forty".