1040487021240 has 64 divisors (see below), whose sum is σ = 3125563126560. Its totient is φ = 277098577920.

The previous prime is 1040487021221. The next prime is 1040487021247. The reversal of 1040487021240 is 421207840401.

It is a super-2 number, since 2×1040487021240² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040487021247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5605609 + ... + 5788248.

Almost surely, 2^{1040487021240} is an apocalyptic number.

1040487021240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1040487021240 is an abundant number, since it is smaller than the sum of its proper divisors (2085076105320).

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

1040487021240 is a wasteful number, since it uses less digits than its factorization.

1040487021240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11394632 (or 11394628 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 33.

The spelling of 1040487021240 in words is "one trillion, forty billion, four hundred eighty-seven million, twenty-one thousand, two hundred forty".