1879291988 has 48 divisors (see below), whose sum is σ = 3894307200. Its totient is φ = 776415360.

The previous prime is 1879291987. The next prime is 1879291991. The reversal of 1879291988 is 8891929781.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1879291988.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1879291987) 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, 665243 + ... + 668061.

It is an arithmetic number, because the mean of its divisors is an integer number (81131400).

Almost surely, 2^1879291988 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 1879291988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1947153600).

1879291988 is an abundant number, since it is smaller than the sum of its proper divisors (2015015212).

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

1879291988 is a wasteful number, since it uses less digits than its factorization.

1879291988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3680 (or 3678 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 62.

The square root of 1879291988 is about 43350.8014689463. The cubic root of 1879291988 is about 1234.0462048410.

The spelling of 1879291988 in words is "one billion, eight hundred seventy-nine million, two hundred ninety-one thousand, nine hundred eighty-eight".