445442039 has 8 divisors (see below), whose sum is σ = 509271840. Its totient is φ = 381661056.

The previous prime is 445442029. The next prime is 445442047. The reversal of 445442039 is 930244544.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 445442039 - 2⁸ = 445441783 is a prime.

It is a super-2 number, since 2×445442039² = 396837220216955042, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445442029) 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, 10067 + ... + 31499.

It is an arithmetic number, because the mean of its divisors is an integer number (63658980).

Almost surely, 2^445442039 is an apocalyptic number.

445442039 is a deficient number, since it is larger than the sum of its proper divisors (63829801).

445442039 is a wasteful number, since it uses less digits than its factorization.

445442039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24409.

The product of its (nonzero) digits is 69120, while the sum is 35.

The square root of 445442039 is about 21105.4978382411. The cubic root of 445442039 is about 763.7133820437.

The spelling of 445442039 in words is "four hundred forty-five million, four hundred forty-two thousand, thirty-nine".