340599728 has 80 divisors (see below), whose sum is σ = 783568896. Its totient is φ = 140348160.

The previous prime is 340599703. The next prime is 340599733. The reversal of 340599728 is 827995043.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 912950 + ... + 913322.

Almost surely, 2^340599728 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 340599728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (391784448).

340599728 is an abundant number, since it is smaller than the sum of its proper divisors (442969168).

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

340599728 is a wasteful number, since it uses less digits than its factorization.

340599728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682 (or 676 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 47.

The square root of 340599728 is about 18455.3441582648. The cubic root of 340599728 is about 698.3633382275.

The spelling of 340599728 in words is "three hundred forty million, five hundred ninety-nine thousand, seven hundred twenty-eight".