442441828 has 12 divisors (see below), whose sum is σ = 815024560. Its totient is φ = 209577672.

The previous prime is 442441807. The next prime is 442441829. The reversal of 442441828 is 828144244.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (442441829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2910726 + ... + 2910877.

Almost surely, 2^442441828 is an apocalyptic number.

It is an amenable number.

442441828 is a deficient number, since it is larger than the sum of its proper divisors (372582732).

442441828 is a wasteful number, since it uses less digits than its factorization.

442441828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5821626 (or 5821624 counting only the distinct ones).

The product of its digits is 65536, while the sum is 37.

The square root of 442441828 is about 21034.3012244286. The cubic root of 442441828 is about 761.9948906963.

It can be divided in two parts, 442 and 441828, that added together give a triangular number (442270 = T₉₄₀).

The spelling of 442441828 in words is "four hundred forty-two million, four hundred forty-one thousand, eight hundred twenty-eight".