345326281 has 8 divisors (see below), whose sum is σ = 351903744. Its totient is φ = 338798880.

The previous prime is 345326257. The next prime is 345326297. The reversal of 345326281 is 182623543.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 345326281 - 2⁷ = 345326153 is a prime.

It is a super-2 number, since 2×345326281² = 238500480698581922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345326381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1560 + ... + 26326.

It is an arithmetic number, because the mean of its divisors is an integer number (43987968).

Almost surely, 2^345326281 is an apocalyptic number.

It is an amenable number.

345326281 is a deficient number, since it is larger than the sum of its proper divisors (6577463).

345326281 is a wasteful number, since it uses less digits than its factorization.

345326281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25031.

The product of its digits is 34560, while the sum is 34.

The square root of 345326281 is about 18582.9567345996. The cubic root of 345326281 is about 701.5789399021.

The spelling of 345326281 in words is "three hundred forty-five million, three hundred twenty-six thousand, two hundred eighty-one".