1881423258 has 48 divisors (see below), whose sum is σ = 4445002656. Its totient is φ = 526269120.

The previous prime is 1881423223. The next prime is 1881423259. The reversal of 1881423258 is 8523241881.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1881423259) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73185 + ... + 95492.

It is an arithmetic number, because the mean of its divisors is an integer number (92604222).

Almost surely, 2^1881423258 is an apocalyptic number.

1881423258 is an abundant number, since it is smaller than the sum of its proper divisors (2563579398).

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

1881423258 is a wasteful number, since it uses less digits than its factorization.

1881423258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168719 (or 168706 counting only the distinct ones).

The product of its digits is 122880, while the sum is 42.

The square root of 1881423258 is about 43375.3761712795. The cubic root of 1881423258 is about 1234.5125315310.

The spelling of 1881423258 in words is "one billion, eight hundred eighty-one million, four hundred twenty-three thousand, two hundred fifty-eight".