840075453 has 72 divisors (see below), whose sum is σ = 1456509600. Its totient is φ = 465022656.

The previous prime is 840075427. The next prime is 840075463. The reversal of 840075453 is 354570048.

It is not a de Polignac number, because 840075453 - 2⁵ = 840075421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840075463) 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 71 ways as a sum of consecutive naturals, for example, 2159383 + ... + 2159771.

It is an arithmetic number, because the mean of its divisors is an integer number (20229300).

Almost surely, 2^840075453 is an apocalyptic number.

840075453 is a gapful number since it is divisible by the number (83) formed by its first and last digit.

It is an amenable number.

840075453 is a deficient number, since it is larger than the sum of its proper divisors (616434147).

840075453 is a wasteful number, since it uses less digits than its factorization.

840075453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551 (or 541 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 840075453 is about 28984.0551510654. The cubic root of 840075453 is about 943.5670463416.

The spelling of 840075453 in words is "eight hundred forty million, seventy-five thousand, four hundred fifty-three".