442133251530 has 32 divisors (see below), whose sum is σ = 1061140699584. Its totient is φ = 117899878656.

The previous prime is 442133251519. The next prime is 442133251561. The reversal of 442133251530 is 35152331244.

It is a junction number, because it is equal to n+sod(n) for n = 442133251491 and 442133251500.

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, 1856209 + ... + 2080811.

It is an arithmetic number, because the mean of its divisors is an integer number (33160646862).

Almost surely, 2^442133251530 is an apocalyptic number.

442133251530 is an abundant number, since it is smaller than the sum of its proper divisors (619007448054).

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

442133251530 is a wasteful number, since it uses less digits than its factorization.

442133251530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290230.

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 442133251530 its reverse (35152331244), we get a palindrome (477285582774).

The spelling of 442133251530 in words is "four hundred forty-two billion, one hundred thirty-three million, two hundred fifty-one thousand, five hundred thirty".