442413620 has 24 divisors (see below), whose sum is σ = 1013529888. Its totient is φ = 160877600.

The previous prime is 442413563. The next prime is 442413623. The reversal of 442413620 is 26314244.

It is a super-2 number, since 2×442413620² = 391459622323008800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 442413620.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442413623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1005266 + ... + 1005705.

It is an arithmetic number, because the mean of its divisors is an integer number (42230412).

Almost surely, 2^442413620 is an apocalyptic number.

It is an amenable number.

442413620 is an abundant number, since it is smaller than the sum of its proper divisors (571116268).

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

442413620 is a wasteful number, since it uses less digits than its factorization.

442413620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2010991 (or 2010989 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 442413620 is about 21033.6306899213. The cubic root of 442413620 is about 761.9786966211.

Adding to 442413620 its reverse (26314244), we get a palindrome (468727864).

The spelling of 442413620 in words is "four hundred forty-two million, four hundred thirteen thousand, six hundred twenty".