346641920 has 160 divisors (see below), whose sum is σ = 881515008. Its totient is φ = 130572288.

The previous prime is 346641859. The next prime is 346641929. The reversal of 346641920 is 29146643.

It is a tau number, because it is divible by the number of its divisors (160).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (346641929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5173727 + ... + 5173793.

Almost surely, 2^346641920 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 346641920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (440757504).

346641920 is an abundant number, since it is smaller than the sum of its proper divisors (534873088).

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

346641920 is an equidigital number, since it uses as much as digits as its factorization.

346641920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 164 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 346641920 is about 18618.3221585620. The cubic root of 346641920 is about 702.4687794030.

The spelling of 346641920 in words is "three hundred forty-six million, six hundred forty-one thousand, nine hundred twenty".