442012961 has 4 divisors (see below), whose sum is σ = 476013972. Its totient is φ = 408011952.

The previous prime is 442012939. The next prime is 442012969. The reversal of 442012961 is 169210244.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 102900736 + 339112225 = 10144^2 + 18415^2 .

It is a cyclic number.

It is not a de Polignac number, because 442012961 - 2²⁶ = 374904097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442012969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17000486 + ... + 17000511.

It is an arithmetic number, because the mean of its divisors is an integer number (119003493).

Almost surely, 2^442012961 is an apocalyptic number.

It is an amenable number.

442012961 is a deficient number, since it is larger than the sum of its proper divisors (34001011).

442012961 is a wasteful number, since it uses less digits than its factorization.

442012961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34001010.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 442012961 is about 21024.1042853197. The cubic root of 442012961 is about 761.7486058830.

The spelling of 442012961 in words is "four hundred forty-two million, twelve thousand, nine hundred sixty-one".