840271453 has 16 divisors (see below), whose sum is σ = 981164800. Its totient is φ = 719309808.

The previous prime is 840271403. The next prime is 840271459. The reversal of 840271453 is 354172048.

It is not a de Polignac number, because 840271453 - 2⁹ = 840270941 is a prime.

It is a super-2 number, since 2×840271453² = 1412112229453462418, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840271459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 495475 + ... + 497167.

It is an arithmetic number, because the mean of its divisors is an integer number (61322800).

Almost surely, 2^840271453 is an apocalyptic number.

It is an amenable number.

840271453 is a deficient number, since it is larger than the sum of its proper divisors (140893347).

840271453 is a wasteful number, since it uses less digits than its factorization.

840271453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3161 (or 3147 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 840271453 is about 28987.4361232586. The cubic root of 840271453 is about 943.6404225919.

The spelling of 840271453 in words is "eight hundred forty million, two hundred seventy-one thousand, four hundred fifty-three".