1040421535920 has 200 divisors, whose sum is σ = 3891502917456. Its totient is φ = 256103741952.

The previous prime is 1040421535891. The next prime is 1040421535963. The reversal of 1040421535920 is 295351240401.

1040421535920 is a `hidden beast` number, since 1 + 0 + 40 + 4 + 21 + 5 + 3 + 592 + 0 = 666.

1040421535920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1040421535920² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6091102 + ... + 6259581.

Almost surely, 2^{1040421535920} is an apocalyptic number.

1040421535920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1040421535920 is an abundant number, since it is smaller than the sum of its proper divisors (2851081381536).

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

1040421535920 is a wasteful number, since it uses less digits than its factorization.

1040421535920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12350721 (or 12350706 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 1040421535920 in words is "one trillion, forty billion, four hundred twenty-one million, five hundred thirty-five thousand, nine hundred twenty".