1016938641 has 8 divisors (see below), whose sum is σ = 1367917920. Its totient is φ = 671959232.

The previous prime is 1016938633. The next prime is 1016938661. The reversal of 1016938641 is 1468396101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1016938641 - 2³ = 1016938633 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1016938641.

It is not an unprimeable number, because it can be changed into a prime (1016938661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1499571 + ... + 1500248.

It is an arithmetic number, because the mean of its divisors is an integer number (170989740).

Almost surely, 2^1016938641 is an apocalyptic number.

It is an amenable number.

1016938641 is a deficient number, since it is larger than the sum of its proper divisors (350979279).

1016938641 is a wasteful number, since it uses less digits than its factorization.

1016938641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2999935.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 1016938641 is about 31889.4753954969. The cubic root of 1016938641 is about 1005.6146305913.

The spelling of 1016938641 in words is "one billion, sixteen million, nine hundred thirty-eight thousand, six hundred forty-one".