1004450240 has 56 divisors (see below), whose sum is σ = 2422184640. Its totient is φ = 396684288.

The previous prime is 1004450231. The next prime is 1004450243. The reversal of 1004450240 is 420544001.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004450243) 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 7 ways as a sum of consecutive naturals, for example, 5414 + ... + 45146.

Almost surely, 2^1004450240 is an apocalyptic number.

1004450240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1004450240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1211092320).

1004450240 is an abundant number, since it is smaller than the sum of its proper divisors (1417734400).

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

1004450240 is an equidigital number, since it uses as much as digits as its factorization.

1004450240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39829 (or 39819 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 1004450240 is about 31693.0629633679. The cubic root of 1004450240 is about 1001.4812182426.

Adding to 1004450240 its reverse (420544001), we get a palindrome (1424994241).

The spelling of 1004450240 in words is "one billion, four million, four hundred fifty thousand, two hundred forty".