840048481 has 16 divisors (see below), whose sum is σ = 931334400. Its totient is φ = 754826688.

The previous prime is 840048413. The next prime is 840048487. The reversal of 840048481 is 184840048.

It is a cyclic number.

It is not a de Polignac number, because 840048481 - 2²¹ = 837951329 is a prime.

It is a super-2 number, since 2×840048481² = 1411362900860814722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 840048481.

It is not an unprimeable number, because it can be changed into a prime (840048487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7660 + ... + 41698.

It is an arithmetic number, because the mean of its divisors is an integer number (58208400).

Almost surely, 2^840048481 is an apocalyptic number.

It is an amenable number.

840048481 is a deficient number, since it is larger than the sum of its proper divisors (91285919).

840048481 is a wasteful number, since it uses less digits than its factorization.

840048481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34128.

The product of its (nonzero) digits is 32768, while the sum is 37.

The square root of 840048481 is about 28983.5898570208. The cubic root of 840048481 is about 943.5569479777.

The spelling of 840048481 in words is "eight hundred forty million, forty-eight thousand, four hundred eighty-one".