1012003040 has 48 divisors (see below), whose sum is σ = 2393003088. Its totient is φ = 404438016.

The previous prime is 1012003039. The next prime is 1012003043. The reversal of 1012003040 is 403002101.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012003043) 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, 241604 + ... + 245756.

It is an arithmetic number, because the mean of its divisors is an integer number (49854231).

Almost surely, 2^1012003040 is an apocalyptic number.

1012003040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012003040 is an abundant number, since it is smaller than the sum of its proper divisors (1381000048).

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

1012003040 is a wasteful number, since it uses less digits than its factorization.

1012003040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5691 (or 5683 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1012003040 is about 31811.9952219285. The cubic root of 1012003040 is about 1003.9851111266.

Adding to 1012003040 its reverse (403002101), we get a palindrome (1415005141).

The spelling of 1012003040 in words is "one billion, twelve million, three thousand, forty".