442790190 has 24 divisors (see below), whose sum is σ = 1151254728. Its totient is φ = 118077360.

The previous prime is 442790167. The next prime is 442790191. The reversal of 442790190 is 91097244.

It is a super-2 number, since 2×442790190² = 392126304720472200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442790191) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2459856 + ... + 2460035.

It is an arithmetic number, because the mean of its divisors is an integer number (47968947).

Almost surely, 2^442790190 is an apocalyptic number.

442790190 is an abundant number, since it is smaller than the sum of its proper divisors (708464538).

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

442790190 is a wasteful number, since it uses less digits than its factorization.

442790190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4919904 (or 4919901 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 442790190 is about 21042.5804026027. The cubic root of 442790190 is about 762.1948269058.

The spelling of 442790190 in words is "four hundred forty-two million, seven hundred ninety thousand, one hundred ninety".