445939446 has 8 divisors (see below), whose sum is σ = 891878904. Its totient is φ = 148646480.

The previous prime is 445939423. The next prime is 445939451. The reversal of 445939446 is 644939544.

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

445939446 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 445939395 and 445939404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37161615 + ... + 37161626.

It is an arithmetic number, because the mean of its divisors is an integer number (111484863).

Almost surely, 2^445939446 is an apocalyptic number.

445939446 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

445939446 is a wasteful number, since it uses less digits than its factorization.

445939446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74323246.

The product of its digits is 1866240, while the sum is 48.

The square root of 445939446 is about 21117.2783757756. The cubic root of 445939446 is about 763.9975455181.

The spelling of 445939446 in words is "four hundred forty-five million, nine hundred thirty-nine thousand, four hundred forty-six".