1854135740 has 12 divisors (see below), whose sum is σ = 3893685096. Its totient is φ = 741654288.

The previous prime is 1854135739. The next prime is 1854135757. The reversal of 1854135740 is 475314581.

It is a junction number, because it is equal to n+sod(n) for n = 1854135694 and 1854135703.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46353374 + ... + 46353413.

It is an arithmetic number, because the mean of its divisors is an integer number (324473758).

Almost surely, 2^1854135740 is an apocalyptic number.

1854135740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1854135740 is an abundant number, since it is smaller than the sum of its proper divisors (2039549356).

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

1854135740 is a wasteful number, since it uses less digits than its factorization.

1854135740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92706796 (or 92706794 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 1854135740 is about 43059.6764966947. The cubic root of 1854135740 is about 1228.5151271039.

The spelling of 1854135740 in words is "one billion, eight hundred fifty-four million, one hundred thirty-five thousand, seven hundred forty".