345894426 has 48 divisors (see below), whose sum is σ = 796278600. Its totient is φ = 108307584.

The previous prime is 345894413. The next prime is 345894431. The reversal of 345894426 is 624498543.

345894426 is a `hidden beast` number, since 3 + 4 + 589 + 44 + 26 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 334341225 + 11553201 = 18285^2 + 3399^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10360 + ... + 28268.

Almost surely, 2^345894426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 345894426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (398139300).

345894426 is an abundant number, since it is smaller than the sum of its proper divisors (450384174).

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

345894426 is a wasteful number, since it uses less digits than its factorization.

345894426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17983 (or 17980 counting only the distinct ones).

The product of its digits is 829440, while the sum is 45.

The square root of 345894426 is about 18598.2371745281. The cubic root of 345894426 is about 701.9634845983.

The spelling of 345894426 in words is "three hundred forty-five million, eight hundred ninety-four thousand, four hundred twenty-six".