442294190 has 16 divisors (see below), whose sum is σ = 857370528. Its totient is φ = 163308576.

The previous prime is 442294187. The next prime is 442294199. The reversal of 442294190 is 91492244.

It is a happy number.

It is a super-2 number, since 2×442294190² = 391248301015512200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 442294190.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442294199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1701002 + ... + 1701261.

It is an arithmetic number, because the mean of its divisors is an integer number (53585658).

Almost surely, 2^442294190 is an apocalyptic number.

442294190 is a deficient number, since it is larger than the sum of its proper divisors (415076338).

442294190 is a wasteful number, since it uses less digits than its factorization.

442294190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3402283.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 442294190 is about 21030.7914734562. The cubic root of 442294190 is about 761.9101248128.

The spelling of 442294190 in words is "four hundred forty-two million, two hundred ninety-four thousand, one hundred ninety".