445191396 has 24 divisors (see below), whose sum is σ = 1118686464. Its totient is φ = 136981920.

The previous prime is 445191389. The next prime is 445191419. The reversal of 445191396 is 693191544.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1426740 + ... + 1427051.

It is an arithmetic number, because the mean of its divisors is an integer number (46611936).

Almost surely, 2^445191396 is an apocalyptic number.

It is an amenable number.

445191396 is an abundant number, since it is smaller than the sum of its proper divisors (673495068).

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

445191396 is a wasteful number, since it uses less digits than its factorization.

445191396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2853811 (or 2853809 counting only the distinct ones).

The product of its digits is 116640, while the sum is 42.

The square root of 445191396 is about 21099.5591423139. The cubic root of 445191396 is about 763.5701121301.

The spelling of 445191396 in words is "four hundred forty-five million, one hundred ninety-one thousand, three hundred ninety-six".