442402194 has 64 divisors (see below), whose sum is σ = 1046707200. Its totient is φ = 123342912.

The previous prime is 442402097. The next prime is 442402199. The reversal of 442402194 is 491204244.

It is not an unprimeable number, because it can be changed into a prime (442402199) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27597 + ... + 40575.

It is an arithmetic number, because the mean of its divisors is an integer number (16354800).

Almost surely, 2^442402194 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 442402194, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (523353600).

442402194 is an abundant number, since it is smaller than the sum of its proper divisors (604305006).

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

442402194 is a wasteful number, since it uses less digits than its factorization.

442402194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13039.

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 442402194 is about 21033.3590755257. The cubic root of 442402194 is about 761.9721368143.

The spelling of 442402194 in words is "four hundred forty-two million, four hundred two thousand, one hundred ninety-four".