340851420 has 144 divisors (see below), whose sum is σ = 1272573120. Its totient is φ = 71912448.

The previous prime is 340851403. The next prime is 340851439. The reversal of 340851420 is 24158043.

It is a congruent number.

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, 5976 + ... + 26784.

Almost surely, 2^340851420 is an apocalyptic number.

340851420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 340851420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (636286560).

340851420 is an abundant number, since it is smaller than the sum of its proper divisors (931721700).

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

340851420 is a wasteful number, since it uses less digits than its factorization.

340851420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20844 (or 20839 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 340851420 is about 18462.1618452445. The cubic root of 340851420 is about 698.5353183867.

The spelling of 340851420 in words is "three hundred forty million, eight hundred fifty-one thousand, four hundred twenty".