1856046040 has 16 divisors (see below), whose sum is σ = 4176103680. Its totient is φ = 742418400.

The previous prime is 1856045999. The next prime is 1856046119. The reversal of 1856046040 is 406406581.

It is a junction number, because it is equal to n+sod(n) for n = 1856045987 and 1856046005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23200536 + ... + 23200615.

It is an arithmetic number, because the mean of its divisors is an integer number (261006480).

Almost surely, 2^1856046040 is an apocalyptic number.

1856046040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1856046040 is an abundant number, since it is smaller than the sum of its proper divisors (2320057640).

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

1856046040 is a wasteful number, since it uses less digits than its factorization.

1856046040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46401162 (or 46401158 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 1856046040 is about 43081.8527920980. The cubic root of 1856046040 is about 1228.9368917899.

The spelling of 1856046040 in words is "one billion, eight hundred fifty-six million, forty-six thousand, forty".