1003451664 has 20 divisors (see below), whose sum is σ = 2592250256. Its totient is φ = 334483872.

The previous prime is 1003451663. The next prime is 1003451681. The reversal of 1003451664 is 4661543001.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1003451663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10452574 + ... + 10452669.

Almost surely, 2^1003451664 is an apocalyptic number.

It is an amenable number.

1003451664 is an abundant number, since it is smaller than the sum of its proper divisors (1588798592).

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

1003451664 is a wasteful number, since it uses less digits than its factorization.

1003451664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20905254 (or 20905248 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 1003451664 is about 31677.3051884153. The cubic root of 1003451664 is about 1001.1492334233.

Adding to 1003451664 its reverse (4661543001), we get a palindrome (5664994665).

The spelling of 1003451664 in words is "one billion, three million, four hundred fifty-one thousand, six hundred sixty-four".