1013640396 has 12 divisors (see below), whose sum is σ = 2365160952. Its totient is φ = 337880128.

The previous prime is 1013640373. The next prime is 1013640461. The reversal of 1013640396 is 6930463101.

It is a tau number, because it is divible by the number of its divisors (12).

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 3 ways as a sum of consecutive naturals, for example, 42235005 + ... + 42235028.

It is an arithmetic number, because the mean of its divisors is an integer number (197096746).

Almost surely, 2^1013640396 is an apocalyptic number.

It is an amenable number.

1013640396 is an abundant number, since it is smaller than the sum of its proper divisors (1351520556).

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

1013640396 is a wasteful number, since it uses less digits than its factorization.

1013640396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84470040 (or 84470038 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 1013640396 is about 31837.7197047779. The cubic root of 1013640396 is about 1004.5262805408.

The spelling of 1013640396 in words is "one billion, thirteen million, six hundred forty thousand, three hundred ninety-six".