1012793920 has 28 divisors (see below), whose sum is σ = 2411716284. Its totient is φ = 405117440.

The previous prime is 1012793911. The next prime is 1012793939. The reversal of 1012793920 is 293972101.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 704159296 + 308634624 = 26536^2 + 17568^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1582171 + ... + 1582810.

Almost surely, 2^1012793920 is an apocalyptic number.

1012793920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012793920 is an abundant number, since it is smaller than the sum of its proper divisors (1398922364).

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

1012793920 is an equidigital number, since it uses as much as digits as its factorization.

1012793920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3164998 (or 3164988 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 1012793920 is about 31824.4233254901. The cubic root of 1012793920 is about 1004.2465810228.

The spelling of 1012793920 in words is "one billion, twelve million, seven hundred ninety-three thousand, nine hundred twenty".