346213420 has 72 divisors (see below), whose sum is σ = 851785200. Its totient is φ = 117855360.

The previous prime is 346213379. The next prime is 346213423. The reversal of 346213420 is 24312643.

It is not an unprimeable number, because it can be changed into a prime (346213423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 144835 + ... + 147205.

It is an arithmetic number, because the mean of its divisors is an integer number (11830350).

Almost surely, 2^346213420 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 346213420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (425892600).

346213420 is an abundant number, since it is smaller than the sum of its proper divisors (505571780).

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

346213420 is a wasteful number, since it uses less digits than its factorization.

346213420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2543 (or 2534 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 346213420 is about 18606.8111185125. The cubic root of 346213420 is about 702.1792087445.

The spelling of 346213420 in words is "three hundred forty-six million, two hundred thirteen thousand, four hundred twenty".