442420130 has 32 divisors (see below), whose sum is σ = 841700160. Its totient is φ = 166968000.

The previous prime is 442420117. The next prime is 442420171. The reversal of 442420130 is 31024244.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43052 + ... + 52328.

It is an arithmetic number, because the mean of its divisors is an integer number (26303130).

Almost surely, 2^442420130 is an apocalyptic number.

442420130 is a deficient number, since it is larger than the sum of its proper divisors (399280030).

442420130 is a wasteful number, since it uses less digits than its factorization.

442420130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9554.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 442420130 is about 21033.7854415224. The cubic root of 442420130 is about 761.9824340414.

Adding to 442420130 its reverse (31024244), we get a palindrome (473444374).

The spelling of 442420130 in words is "four hundred forty-two million, four hundred twenty thousand, one hundred thirty".