1000303540 has 12 divisors (see below), whose sum is σ = 2100637476. Its totient is φ = 400121408.

The previous prime is 1000303529. The next prime is 1000303553. The reversal of 1000303540 is 453030001.

It can be written as a sum of positive squares in 2 ways, for example, as 656794384 + 343509156 = 25628^2 + 18534^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25007569 + ... + 25007608.

It is an arithmetic number, because the mean of its divisors is an integer number (175053123).

Almost surely, 2^1000303540 is an apocalyptic number.

1000303540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000303540 is an abundant number, since it is smaller than the sum of its proper divisors (1100333936).

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

1000303540 is a wasteful number, since it uses less digits than its factorization.

1000303540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50015186 (or 50015184 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 1000303540 is about 31627.5756263423. The cubic root of 1000303540 is about 1000.1011697643.

Adding to 1000303540 its reverse (453030001), we get a palindrome (1453333541).

The spelling of 1000303540 in words is "one billion, three hundred three thousand, five hundred forty".