442041620 has 24 divisors (see below), whose sum is σ = 928695264. Its totient is φ = 176738976.

The previous prime is 442041619. The next prime is 442041643. The reversal of 442041620 is 26140244.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69827 + ... + 75893.

It is an arithmetic number, because the mean of its divisors is an integer number (38695636).

Almost surely, 2^442041620 is an apocalyptic number.

It is an amenable number.

442041620 is an abundant number, since it is smaller than the sum of its proper divisors (486653644).

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

442041620 is a wasteful number, since it uses less digits than its factorization.

442041620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9719 (or 9717 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 442041620 is about 21024.7858490877. The cubic root of 442041620 is about 761.7650688101.

Adding to 442041620 its reverse (26140244), we get a palindrome (468181864).

The spelling of 442041620 in words is "four hundred forty-two million, forty-one thousand, six hundred twenty".