442233445 has 16 divisors (see below), whose sum is σ = 550674432. Its totient is φ = 340577280.

The previous prime is 442233439. The next prime is 442233479. The reversal of 442233445 is 544332244.

It is not a de Polignac number, because 442233445 - 2⁷ = 442233317 is a prime.

It is a super-3 number, since 3×442233445³ (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22524 + ... + 37306.

It is an arithmetic number, because the mean of its divisors is an integer number (34417152).

Almost surely, 2^442233445 is an apocalyptic number.

It is an amenable number.

442233445 is a deficient number, since it is larger than the sum of its proper divisors (108440987).

442233445 is a wasteful number, since it uses less digits than its factorization.

442233445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15012.

The product of its digits is 46080, while the sum is 31.

The square root of 442233445 is about 21029.3472319043. The cubic root of 442233445 is about 761.8752427889.

Adding to 442233445 its reverse (544332244), we get a palindrome (986565689).

The spelling of 442233445 in words is "four hundred forty-two million, two hundred thirty-three thousand, four hundred forty-five".