345855798 has 128 divisors (see below), whose sum is σ = 840499200. Its totient is φ = 105162624.

The previous prime is 345855749. The next prime is 345855799. The reversal of 345855798 is 897558543.

345855798 is a `hidden beast` number, since 3 + 4 + 585 + 57 + 9 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345855799) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2723211 + ... + 2723337.

It is an arithmetic number, because the mean of its divisors is an integer number (6566400).

Almost surely, 2^345855798 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 345855798, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (420249600).

345855798 is an abundant number, since it is smaller than the sum of its proper divisors (494643402).

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

345855798 is a wasteful number, since it uses less digits than its factorization.

345855798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251 (or 245 counting only the distinct ones).

The product of its digits is 6048000, while the sum is 54.

The square root of 345855798 is about 18597.1986600133. The cubic root of 345855798 is about 701.9373528725.

The spelling of 345855798 in words is "three hundred forty-five million, eight hundred fifty-five thousand, seven hundred ninety-eight".