1004243240 has 192 divisors, whose sum is σ = 3088834560. Its totient is φ = 288852480.

The previous prime is 1004243239. The next prime is 1004243263. The reversal of 1004243240 is 423424001.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 278489 + ... + 282071.

It is an arithmetic number, because the mean of its divisors is an integer number (16087680).

Almost surely, 2^1004243240 is an apocalyptic number.

1004243240 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 1004243240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1544417280).

1004243240 is an abundant number, since it is smaller than the sum of its proper divisors (2084591320).

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

1004243240 is a wasteful number, since it uses less digits than its factorization.

1004243240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3632 (or 3621 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 1004243240 is about 31689.7970962264. The cubic root of 1004243240 is about 1001.4124174710.

Adding to 1004243240 its reverse (423424001), we get a palindrome (1427667241).

The spelling of 1004243240 in words is "one billion, four million, two hundred forty-three thousand, two hundred forty".