445864838 has 4 divisors (see below), whose sum is σ = 668797260. Its totient is φ = 222932418.

The previous prime is 445864819. The next prime is 445864871. The reversal of 445864838 is 838468544.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111466208 + ... + 111466211.

It is an arithmetic number, because the mean of its divisors is an integer number (167199315).

Almost surely, 2^445864838 is an apocalyptic number.

445864838 is a deficient number, since it is larger than the sum of its proper divisors (222932422).

445864838 is a wasteful number, since it uses less digits than its factorization.

445864838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222932421.

The product of its digits is 2949120, while the sum is 50.

The square root of 445864838 is about 21115.5117863622. The cubic root of 445864838 is about 763.9549362143.

It can be divided in two parts, 4458 and 64838, that added together give a palindrome (69296).

The spelling of 445864838 in words is "four hundred forty-five million, eight hundred sixty-four thousand, eight hundred thirty-eight".