450001604 has 12 divisors (see below), whose sum is σ = 848080044. Its totient is φ = 207693024.

The previous prime is 450001597. The next prime is 450001619. The reversal of 450001604 is 406100054.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 45589504 + 404412100 = 6752^2 + 20110^2 .

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, 4326887 + ... + 4326990.

It is an arithmetic number, because the mean of its divisors is an integer number (70673337).

Almost surely, 2^450001604 is an apocalyptic number.

It is an amenable number.

450001604 is a deficient number, since it is larger than the sum of its proper divisors (398078440).

450001604 is a wasteful number, since it uses less digits than its factorization.

450001604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8653894 (or 8653892 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 450001604 is about 21213.2412422053. The cubic root of 450001604 is about 766.3103428816.

Adding to 450001604 its reverse (406100054), we get a palindrome (856101658).

The spelling of 450001604 in words is "four hundred fifty million, one thousand, six hundred four".