345538641 has 24 divisors (see below), whose sum is σ = 546061824. Its totient is φ = 193720800.

The previous prime is 345538603. The next prime is 345538643. The reversal of 345538641 is 146835543.

It is not a de Polignac number, because 345538641 - 2¹⁴ = 345522257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 345538641.

It is not an unprimeable number, because it can be changed into a prime (345538643) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14385 + ... + 29966.

It is an arithmetic number, because the mean of its divisors is an integer number (22752576).

Almost surely, 2^345538641 is an apocalyptic number.

It is an amenable number.

345538641 is a deficient number, since it is larger than the sum of its proper divisors (200523183).

345538641 is a wasteful number, since it uses less digits than its factorization.

345538641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44421 (or 44414 counting only the distinct ones).

The product of its digits is 172800, while the sum is 39.

The square root of 345538641 is about 18588.6696941981. The cubic root of 345538641 is about 701.7227235083.

The spelling of 345538641 in words is "three hundred forty-five million, five hundred thirty-eight thousand, six hundred forty-one".