345715641 has 16 divisors (see below), whose sum is σ = 529833600. Its totient is φ = 222529104.

The previous prime is 345715639. The next prime is 345715673. The reversal of 345715641 is 146517543.

345715641 is a `hidden beast` number, since 3 + 4 + 5 + 7 + 1 + 5 + 641 = 666.

It is not a de Polignac number, because 345715641 - 2¹ = 345715639 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 345715596 and 345715605.

It is not an unprimeable number, because it can be changed into a prime (345715631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 219981 + ... + 221546.

It is an arithmetic number, because the mean of its divisors is an integer number (33114600).

Almost surely, 2^345715641 is an apocalyptic number.

It is an amenable number.

345715641 is a deficient number, since it is larger than the sum of its proper divisors (184117959).

345715641 is a wasteful number, since it uses less digits than its factorization.

345715641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441565 (or 441559 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 345715641 is about 18593.4300493481. The cubic root of 345715641 is about 701.8425207423.

The spelling of 345715641 in words is "three hundred forty-five million, seven hundred fifteen thousand, six hundred forty-one".