8940161790 has 192 divisors, whose sum is σ = 28222556544. Its totient is φ = 1916780544.

The previous prime is 8940161771. The next prime is 8940161833. The reversal of 8940161790 is 971610498.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3608032 + ... + 3610508.

It is an arithmetic number, because the mean of its divisors is an integer number (146992482).

Almost surely, 2^8940161790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8940161790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14111278272).

8940161790 is an abundant number, since it is smaller than the sum of its proper divisors (19282394754).

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

8940161790 is a wasteful number, since it uses less digits than its factorization.

8940161790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2851 (or 2848 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 8940161790 is about 94552.4287895345. The cubic root of 8940161790 is about 2075.4636242785.

The spelling of 8940161790 in words is "eight billion, nine hundred forty million, one hundred sixty-one thousand, seven hundred ninety".