442120134 has 16 divisors (see below), whose sum is σ = 884543040. Its totient is φ = 147322920.

The previous prime is 442120123. The next prime is 442120157. The reversal of 442120134 is 431021244.

It is a self number, because there is not a number n which added to its sum of digits gives 442120134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9297 + ... + 31155.

It is an arithmetic number, because the mean of its divisors is an integer number (55283940).

Almost surely, 2^442120134 is an apocalyptic number.

442120134 is an abundant number, since it is smaller than the sum of its proper divisors (442422906).

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

442120134 is a wasteful number, since it uses less digits than its factorization.

442120134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25235.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 442120134 is about 21026.6529433479. The cubic root of 442120134 is about 761.8101668878.

Adding to 442120134 its reverse (431021244), we get a palindrome (873141378).

The spelling of 442120134 in words is "four hundred forty-two million, one hundred twenty thousand, one hundred thirty-four".