340353420 has 48 divisors (see below), whose sum is σ = 1039627008. Its totient is φ = 82509760.

The previous prime is 340353389. The next prime is 340353421. The reversal of 340353420 is 24353043.

It is not an unprimeable number, because it can be changed into a prime (340353421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 257184 + ... + 258503.

It is an arithmetic number, because the mean of its divisors is an integer number (21658896).

Almost surely, 2^340353420 is an apocalyptic number.

340353420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

340353420 is an abundant number, since it is smaller than the sum of its proper divisors (699273588).

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

340353420 is a wasteful number, since it uses less digits than its factorization.

340353420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515710 (or 515708 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 24.

The square root of 340353420 is about 18448.6698707522. The cubic root of 340353420 is about 698.1949548889.

The spelling of 340353420 in words is "three hundred forty million, three hundred fifty-three thousand, four hundred twenty".