853441440 has 48 divisors (see below), whose sum is σ = 2688342048. Its totient is φ = 227584256.

The previous prime is 853441367. The next prime is 853441447. The reversal of 853441440 is 44144358.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (853441447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 888522 + ... + 889481.

It is an arithmetic number, because the mean of its divisors is an integer number (56007126).

Almost surely, 2^853441440 is an apocalyptic number.

853441440 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

853441440 is an abundant number, since it is smaller than the sum of its proper divisors (1834900608).

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

853441440 is a wasteful number, since it uses less digits than its factorization.

853441440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1778021 (or 1778013 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 33.

The square root of 853441440 is about 29213.7200643807. The cubic root of 853441440 is about 948.5449340767.

Adding to 853441440 its reverse (44144358), we get a palindrome (897585798).

The spelling of 853441440 in words is "eight hundred fifty-three million, four hundred forty-one thousand, four hundred forty".