1040020512 has 48 divisors (see below), whose sum is σ = 2788152192. Its totient is φ = 339296000.

The previous prime is 1040020507. The next prime is 1040020529. The reversal of 1040020512 is 2150200401.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 1040020491 and 1040020500.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110739 + ... + 119762.

It is an arithmetic number, because the mean of its divisors is an integer number (58086504).

Almost surely, 2^1040020512 is an apocalyptic number.

1040020512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1040020512 is an abundant number, since it is smaller than the sum of its proper divisors (1748131680).

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

1040020512 is a wasteful number, since it uses less digits than its factorization.

1040020512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230561 (or 230553 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 1040020512 is about 32249.3490166856. The cubic root of 1040020512 is about 1013.1660646500.

Adding to 1040020512 its reverse (2150200401), we get a palindrome (3190220913).

The spelling of 1040020512 in words is "one billion, forty million, twenty thousand, five hundred twelve".