342744561 has 16 divisors (see below), whose sum is σ = 508965120. Its totient is φ = 227958480.

The previous prime is 342744559. The next prime is 342744569. The reversal of 342744561 is 165447243.

342744561 is a `hidden beast` number, since 34 + 27 + 44 + 561 = 666.

It is not a de Polignac number, because 342744561 - 2¹ = 342744559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (342744569) 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, 3090 + ... + 26363.

It is an arithmetic number, because the mean of its divisors is an integer number (31810320).

Almost surely, 2^342744561 is an apocalyptic number.

It is an amenable number.

342744561 is a deficient number, since it is larger than the sum of its proper divisors (166220559).

342744561 is a wasteful number, since it uses less digits than its factorization.

342744561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29893 (or 29887 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 342744561 is about 18513.3616882510. The cubic root of 342744561 is about 699.8261888188.

The spelling of 342744561 in words is "three hundred forty-two million, seven hundred forty-four thousand, five hundred sixty-one".