345090928 has 100 divisors (see below), whose sum is σ = 841218728. Its totient is φ = 136321920.

The previous prime is 345090917. The next prime is 345090931. The reversal of 345090928 is 829090543.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 499063 + ... + 499753.

Almost surely, 2^345090928 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 345090928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (420609364).

345090928 is an abundant number, since it is smaller than the sum of its proper divisors (496127800).

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

345090928 is an equidigital number, since it uses as much as digits as its factorization.

345090928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740 (or 713 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 345090928 is about 18576.6231592289. The cubic root of 345090928 is about 701.4195194321.

The spelling of 345090928 in words is "three hundred forty-five million, ninety thousand, nine hundred twenty-eight".