442877090 has 16 divisors (see below), whose sum is σ = 798811200. Its totient is φ = 176788080.

The previous prime is 442877077. The next prime is 442877101. The reversal of 442877090 is 90778244.

It is a super-2 number, since 2×442877090² = 392280233693736200, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 40190 + ... + 50009.

It is an arithmetic number, because the mean of its divisors is an integer number (49925700).

Almost surely, 2^442877090 is an apocalyptic number.

442877090 is a deficient number, since it is larger than the sum of its proper divisors (355934110).

442877090 is a wasteful number, since it uses less digits than its factorization.

442877090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90697.

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 442877090 is about 21044.6451621309. The cubic root of 442877090 is about 762.2446852808.

It can be divided in two parts, 4428 and 77090, that added together give a palindrome (81518).

The spelling of 442877090 in words is "four hundred forty-two million, eight hundred seventy-seven thousand, ninety".