1859028642 has 96 divisors (see below), whose sum is σ = 4432506624. Its totient is φ = 560716800.

The previous prime is 1859028637. The next prime is 1859028649. The reversal of 1859028642 is 2468209581.

1859028642 is a `hidden beast` number, since 18 + 590 + 2 + 8 + 6 + 42 = 666.

It is not an unprimeable number, because it can be changed into a prime (1859028649) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 889723 + ... + 891809.

It is an arithmetic number, because the mean of its divisors is an integer number (46171944).

Almost surely, 2^1859028642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1859028642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2216253312).

1859028642 is an abundant number, since it is smaller than the sum of its proper divisors (2573477982).

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

1859028642 is a wasteful number, since it uses less digits than its factorization.

1859028642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2224 (or 2221 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 1859028642 is about 43116.4544228767. The cubic root of 1859028642 is about 1229.5948258959.

The spelling of 1859028642 in words is "one billion, eight hundred fifty-nine million, twenty-eight thousand, six hundred forty-two".