345921641 has 8 divisors (see below), whose sum is σ = 372699264. Its totient is φ = 319168080.

The previous prime is 345921623. The next prime is 345921643. The reversal of 345921641 is 146129543.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345921641 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (345921643) 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, 33506 + ... + 42596.

It is an arithmetic number, because the mean of its divisors is an integer number (46587408).

Almost surely, 2^345921641 is an apocalyptic number.

It is an amenable number.

345921641 is a deficient number, since it is larger than the sum of its proper divisors (26777623).

345921641 is a wasteful number, since it uses less digits than its factorization.

345921641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12031.

The product of its digits is 25920, while the sum is 35.

The square root of 345921641 is about 18598.9688155016. The cubic root of 345921641 is about 701.9818942958.

The spelling of 345921641 in words is "three hundred forty-five million, nine hundred twenty-one thousand, six hundred forty-one".