1879699842 has 24 divisors (see below), whose sum is σ = 4095191100. Its totient is φ = 623103840.

The previous prime is 1879699831. The next prime is 1879699859. The reversal of 1879699842 is 2489969781.

It can be written as a sum of positive squares in 2 ways, for example, as 1461456441 + 418243401 = 38229^2 + 20451^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1879699842.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 285217 + ... + 291732.

Almost surely, 2^1879699842 is an apocalyptic number.

1879699842 is an abundant number, since it is smaller than the sum of its proper divisors (2215491258).

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

1879699842 is a wasteful number, since it uses less digits than its factorization.

1879699842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577138 (or 577135 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 63.

The square root of 1879699842 is about 43355.5053251603. The cubic root of 1879699842 is about 1234.1354714865.

The spelling of 1879699842 in words is "one billion, eight hundred seventy-nine million, six hundred ninety-nine thousand, eight hundred forty-two".