993738156 has 96 divisors (see below), whose sum is σ = 2473927680. Its totient is φ = 310003200.

The previous prime is 993738149. The next prime is 993738169. The reversal of 993738156 is 651837399.

It is a junction number, because it is equal to n+sod(n) for n = 993738099 and 993738108.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1437771 + ... + 1438461.

It is an arithmetic number, because the mean of its divisors is an integer number (25770080).

Almost surely, 2^993738156 is an apocalyptic number.

It is an amenable number.

993738156 is an abundant number, since it is smaller than the sum of its proper divisors (1480189524).

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

993738156 is a wasteful number, since it uses less digits than its factorization.

993738156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855 (or 853 counting only the distinct ones).

The product of its digits is 1224720, while the sum is 51.

The square root of 993738156 is about 31523.6126736769. The cubic root of 993738156 is about 997.9083467035.

The spelling of 993738156 in words is "nine hundred ninety-three million, seven hundred thirty-eight thousand, one hundred fifty-six".