853995280 has 40 divisors (see below), whose sum is σ = 2090044800. Its totient is φ = 323618688.

The previous prime is 853995269. The next prime is 853995283. The reversal of 853995280 is 82599358.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (853995283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279400 + ... + 282439.

It is an arithmetic number, because the mean of its divisors is an integer number (52251120).

Almost surely, 2^853995280 is an apocalyptic number.

853995280 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

853995280 is an abundant number, since it is smaller than the sum of its proper divisors (1236049520).

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

853995280 is a wasteful number, since it uses less digits than its factorization.

853995280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561871 (or 561865 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 49.

The square root of 853995280 is about 29223.1976347559. The cubic root of 853995280 is about 948.7500754813.

The spelling of 853995280 in words is "eight hundred fifty-three million, nine hundred ninety-five thousand, two hundred eighty".