1001004240 has 40 divisors (see below), whose sum is σ = 3103113888. Its totient is φ = 266934400.

The previous prime is 1001004239. The next prime is 1001004241. The reversal of 1001004240 is 424001001.

1001004240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1001004239) and next prime (1001004241).

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001004241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2085186 + ... + 2085665.

Almost surely, 2^1001004240 is an apocalyptic number.

1001004240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1001004240 is an abundant number, since it is smaller than the sum of its proper divisors (2102109648).

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

1001004240 is a wasteful number, since it uses less digits than its factorization.

1001004240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4170867 (or 4170861 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 1001004240 is about 31638.6510458332. The cubic root of 1001004240 is about 1000.3346346738.

Adding to 1001004240 its reverse (424001001), we get a palindrome (1425005241).

The spelling of 1001004240 in words is "one billion, one million, four thousand, two hundred forty".