340839856 has 80 divisors (see below), whose sum is σ = 780646464. Its totient is φ = 141115392.

The previous prime is 340839827. The next prime is 340839857. The reversal of 340839856 is 658938043.

It is not an unprimeable number, because it can be changed into a prime (340839857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 965376 + ... + 965728.

Almost surely, 2^340839856 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 340839856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (390323232).

340839856 is an abundant number, since it is smaller than the sum of its proper divisors (439806608).

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

340839856 is a wasteful number, since it uses less digits than its factorization.

340839856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638 (or 632 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 46.

The square root of 340839856 is about 18461.8486614965. The cubic root of 340839856 is about 698.5274186066.

It can be divided in two parts, 3408 and 39856, that added together give a square (43264 = 208²).

The spelling of 340839856 in words is "three hundred forty million, eight hundred thirty-nine thousand, eight hundred fifty-six".