442117130 has 64 divisors (see below), whose sum is σ = 1037111040. Its totient is φ = 131687424.

The previous prime is 442117111. The next prime is 442117153. The reversal of 442117130 is 31711244.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 442117096 and 442117105.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1181 + ... + 29759.

It is an arithmetic number, because the mean of its divisors is an integer number (16204860).

Almost surely, 2^442117130 is an apocalyptic number.

442117130 is an abundant number, since it is smaller than the sum of its proper divisors (594993910).

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

442117130 is a wasteful number, since it uses less digits than its factorization.

442117130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28623.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 442117130 is about 21026.5815100791. The cubic root of 442117130 is about 761.8084415023.

Adding to 442117130 its reverse (31711244), we get a palindrome (473828374).

The spelling of 442117130 in words is "four hundred forty-two million, one hundred seventeen thousand, one hundred thirty".