340644330 has 96 divisors (see below), whose sum is σ = 957640320. Its totient is φ = 83514240.

The previous prime is 340644307. The next prime is 340644371. The reversal of 340644330 is 33446043.

It is a super-2 number, since 2×340644330² = 232077119122297800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 340644294 and 340644303.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 419625 + ... + 420435.

It is an arithmetic number, because the mean of its divisors is an integer number (9975420).

Almost surely, 2^340644330 is an apocalyptic number.

340644330 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 340644330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (478820160).

340644330 is an abundant number, since it is smaller than the sum of its proper divisors (616995990).

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

340644330 is a wasteful number, since it uses less digits than its factorization.

340644330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196 (or 1193 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

The square root of 340644330 is about 18456.5524949813. The cubic root of 340644330 is about 698.3938207749.

The spelling of 340644330 in words is "three hundred forty million, six hundred forty-four thousand, three hundred thirty".