854521240 has 16 divisors (see below), whose sum is σ = 1922672880. Its totient is φ = 341808480.

The previous prime is 854521229. The next prime is 854521243. The reversal of 854521240 is 42125458.

It is a super-2 number, since 2×854521240² = 1460413099222275200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (854521243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10681476 + ... + 10681555.

It is an arithmetic number, because the mean of its divisors is an integer number (120167055).

Almost surely, 2^854521240 is an apocalyptic number.

It is an amenable number.

854521240 is an abundant number, since it is smaller than the sum of its proper divisors (1068151640).

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

854521240 is a wasteful number, since it uses less digits than its factorization.

854521240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21363042 (or 21363038 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 31.

The square root of 854521240 is about 29232.1952648103. The cubic root of 854521240 is about 948.9448080884.

Adding to 854521240 its reverse (42125458), we get a palindrome (896646698).

The spelling of 854521240 in words is "eight hundred fifty-four million, five hundred twenty-one thousand, two hundred forty".