442423442 has 8 divisors (see below), whose sum is σ = 663735600. Its totient is φ = 221178244.

The previous prime is 442423439. The next prime is 442423451. The reversal of 442423442 is 244324244.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×442423442² = 391477004062254728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5909 + ... + 30327.

It is an arithmetic number, because the mean of its divisors is an integer number (82966950).

Almost surely, 2^442423442 is an apocalyptic number.

442423442 is a deficient number, since it is larger than the sum of its proper divisors (221312158).

442423442 is a wasteful number, since it uses less digits than its factorization.

442423442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33480.

The product of its digits is 24576, while the sum is 29.

The square root of 442423442 is about 21033.8641718539. The cubic root of 442423442 is about 761.9843354615.

Adding to 442423442 its reverse (244324244), we get a palindrome (686747686).

The spelling of 442423442 in words is "four hundred forty-two million, four hundred twenty-three thousand, four hundred forty-two".