1003040340 has 48 divisors (see below), whose sum is σ = 2899115520. Its totient is φ = 258848640.

The previous prime is 1003040299. The next prime is 1003040347. The reversal of 1003040340 is 430403001.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003040347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 267775 + ... + 271494.

It is an arithmetic number, because the mean of its divisors is an integer number (60398240).

Almost surely, 2^1003040340 is an apocalyptic number.

1003040340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1003040340 is an abundant number, since it is smaller than the sum of its proper divisors (1896075180).

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

1003040340 is a wasteful number, since it uses less digits than its factorization.

1003040340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539312 (or 539310 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 1003040340 is about 31670.8121146269. The cubic root of 1003040340 is about 1001.0124213238.

Adding to 1003040340 its reverse (430403001), we get a palindrome (1433443341).

The spelling of 1003040340 in words is "one billion, three million, forty thousand, three hundred forty".