442131366346 has 16 divisors (see below), whose sum is σ = 682601667840. Its totient is φ = 214689224880.

The previous prime is 442131366277. The next prime is 442131366377. The reversal of 442131366346 is 643663131244.

It is a super-2 number, since 2×442131366346² (a number of 24 digits) contains 22 as substring.

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, 22927246 + ... + 22946521.

It is an arithmetic number, because the mean of its divisors is an integer number (42662604240).

Almost surely, 2^442131366346 is an apocalyptic number.

442131366346 is a deficient number, since it is larger than the sum of its proper divisors (240470301494).

442131366346 is a wasteful number, since it uses less digits than its factorization.

442131366346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45873909.

The product of its digits is 746496, while the sum is 43.

The spelling of 442131366346 in words is "four hundred forty-two billion, one hundred thirty-one million, three hundred sixty-six thousand, three hundred forty-six".