420044442 has 8 divisors (see below), whose sum is σ = 840088896. Its totient is φ = 140014812.

The previous prime is 420044441. The next prime is 420044473. The reversal of 420044442 is 244440024.

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

420044442 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (420044441) 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, 35003698 + ... + 35003709.

It is an arithmetic number, because the mean of its divisors is an integer number (105011112).

Almost surely, 2^420044442 is an apocalyptic number.

420044442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420044442 is a wasteful number, since it uses less digits than its factorization.

420044442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70007412.

The product of its (nonzero) digits is 4096, while the sum is 24.

The square root of 420044442 is about 20494.9857770138. The cubic root of 420044442 is about 748.9136521130.

Adding to 420044442 its reverse (244440024), we get a palindrome (664484466).

The spelling of 420044442 in words is "four hundred twenty million, forty-four thousand, four hundred forty-two".