447328890 has 48 divisors (see below), whose sum is σ = 1194497928. Its totient is φ = 116062848.

The previous prime is 447328883. The next prime is 447328907. The reversal of 447328890 is 98823744.

It can be written as a sum of positive squares in 4 ways, for example, as 434347281 + 12981609 = 20841^2 + 3603^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63837 + ... + 70496.

Almost surely, 2^447328890 is an apocalyptic number.

447328890 is an abundant number, since it is smaller than the sum of its proper divisors (747169038).

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

447328890 is a wasteful number, since it uses less digits than its factorization.

447328890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134383 (or 134380 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 447328890 is about 21150.1510632903. The cubic root of 447328890 is about 764.7902026257.

The spelling of 447328890 in words is "four hundred forty-seven million, three hundred twenty-eight thousand, eight hundred ninety".