442622541 has 4 divisors (see below), whose sum is σ = 590163392. Its totient is φ = 295081692.

The previous prime is 442622539. The next prime is 442622549. The reversal of 442622541 is 145226244.

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 not a de Polignac number, because 442622541 - 2¹ = 442622539 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 442622499 and 442622508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442622549) 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, 73770421 + ... + 73770426.

It is an arithmetic number, because the mean of its divisors is an integer number (147540848).

Almost surely, 2^442622541 is an apocalyptic number.

It is an amenable number.

442622541 is a deficient number, since it is larger than the sum of its proper divisors (147540851).

442622541 is a wasteful number, since it uses less digits than its factorization.

442622541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147540850.

The product of its digits is 15360, while the sum is 30.

The square root of 442622541 is about 21038.5964598402. The cubic root of 442622541 is about 762.0986208217.

Adding to 442622541 its reverse (145226244), we get a palindrome (587848785).

The spelling of 442622541 in words is "four hundred forty-two million, six hundred twenty-two thousand, five hundred forty-one".