854449992 has 128 divisors (see below), whose sum is σ = 2600755200. Its totient is φ = 257774400.

The previous prime is 854449987. The next prime is 854450021. The reversal of 854449992 is 299944458.

854449992 is a `hidden beast` number, since 8 + 544 + 4 + 9 + 9 + 92 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 643233 + ... + 644559.

It is an arithmetic number, because the mean of its divisors is an integer number (20318400).

Almost surely, 2^854449992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 854449992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1300377600).

854449992 is an abundant number, since it is smaller than the sum of its proper divisors (1746305208).

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

854449992 is a wasteful number, since it uses less digits than its factorization.

854449992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1624 (or 1614 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 54.

The square root of 854449992 is about 29230.9765830702. The cubic root of 854449992 is about 948.9184337494.

The spelling of 854449992 in words is "eight hundred fifty-four million, four hundred forty-nine thousand, nine hundred ninety-two".