1004432445 has 12 divisors (see below), whose sum is σ = 1741016316. Its totient is φ = 535697280.

The previous prime is 1004432431. The next prime is 1004432449. The reversal of 1004432445 is 5442344001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 514518489 + 489913956 = 22683^2 + 22134^2 .

It is not a de Polignac number, because 1004432445 - 2⁸ = 1004432189 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004432449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11160316 + ... + 11160405.

It is an arithmetic number, because the mean of its divisors is an integer number (145084693).

Almost surely, 2^1004432445 is an apocalyptic number.

1004432445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1004432445 is a deficient number, since it is larger than the sum of its proper divisors (736583871).

1004432445 is a wasteful number, since it uses less digits than its factorization.

1004432445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22320732 (or 22320729 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 1004432445 is about 31692.7822224556. The cubic root of 1004432445 is about 1001.4753040742.

Adding to 1004432445 its reverse (5442344001), we get a palindrome (6446776446).

The spelling of 1004432445 in words is "one billion, four million, four hundred thirty-two thousand, four hundred forty-five".