345344621 has 8 divisors (see below), whose sum is σ = 347410080. Its totient is φ = 343285488.

The previous prime is 345344603. The next prime is 345344633. The reversal of 345344621 is 126443543.

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-345344621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345344651) 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, 145970 + ... + 148316.

It is an arithmetic number, because the mean of its divisors is an integer number (43426260).

Almost surely, 2^345344621 is an apocalyptic number.

It is an amenable number.

345344621 is a deficient number, since it is larger than the sum of its proper divisors (2065459).

345344621 is a wasteful number, since it uses less digits than its factorization.

345344621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3163.

The product of its digits is 34560, while the sum is 32.

The square root of 345344621 is about 18583.4501909629. The cubic root of 345344621 is about 701.5913597793.

The spelling of 345344621 in words is "three hundred forty-five million, three hundred forty-four thousand, six hundred twenty-one".