442345461 has 4 divisors (see below), whose sum is σ = 589793952. Its totient is φ = 294896972.

The previous prime is 442345451. The next prime is 442345487. The reversal of 442345461 is 164543244.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 442345461 - 2⁷ = 442345333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442345451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73724241 + ... + 73724246.

It is an arithmetic number, because the mean of its divisors is an integer number (147448488).

Almost surely, 2^442345461 is an apocalyptic number.

It is an amenable number.

442345461 is a deficient number, since it is larger than the sum of its proper divisors (147448491).

442345461 is a wasteful number, since it uses less digits than its factorization.

442345461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147448490.

The product of its digits is 46080, while the sum is 33.

The square root of 442345461 is about 21032.0103889286. The cubic root of 442345461 is about 761.9395640304.

The spelling of 442345461 in words is "four hundred forty-two million, three hundred forty-five thousand, four hundred sixty-one".