442252061 has 4 divisors (see below), whose sum is σ = 442314012. Its totient is φ = 442190112.

The previous prime is 442252051. The next prime is 442252067. The reversal of 442252061 is 160252244.

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 148986436 + 293265625 = 12206^2 + 17125^2 .

It is a cyclic number.

It is not a de Polignac number, because 442252061 - 2¹⁸ = 441989917 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 442252061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442252067) 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, 18626 + ... + 35091.

It is an arithmetic number, because the mean of its divisors is an integer number (110578503).

Almost surely, 2^442252061 is an apocalyptic number.

It is an amenable number.

442252061 is a deficient number, since it is larger than the sum of its proper divisors (61951).

442252061 is an equidigital number, since it uses as much as digits as its factorization.

442252061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61950.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 442252061 is about 21029.7898467864. The cubic root of 442252061 is about 761.8859331235.

The spelling of 442252061 in words is "four hundred forty-two million, two hundred fifty-two thousand, sixty-one".