1788916956 has 48 divisors (see below), whose sum is σ = 4425980160. Its totient is φ = 560787840.

The previous prime is 1788916901. The next prime is 1788916957. The reversal of 1788916956 is 6596198871.

It is a self number, because there is not a number n which added to its sum of digits gives 1788916956.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1788916957) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2601 + ... + 59871.

It is an arithmetic number, because the mean of its divisors is an integer number (92207920).

Almost surely, 2^1788916956 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1788916956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2212990080).

1788916956 is an abundant number, since it is smaller than the sum of its proper divisors (2637063204).

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

1788916956 is a wasteful number, since it uses less digits than its factorization.

1788916956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57434 (or 57432 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 60.

The square root of 1788916956 is about 42295.5902665987. The cubic root of 1788916956 is about 1213.9386161715.

The spelling of 1788916956 in words is "one billion, seven hundred eighty-eight million, nine hundred sixteen thousand, nine hundred fifty-six".