840048297 has 24 divisors (see below), whose sum is σ = 1277350368. Its totient is φ = 486974400.

The previous prime is 840048283. The next prime is 840048299. The reversal of 840048297 is 792840048.

It is not a de Polignac number, because 840048297 - 2⁴ = 840048281 is a prime.

It is a super-2 number, since 2×840048297² = 1411362282585200418, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (840048299) 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 23 ways as a sum of consecutive naturals, for example, 6604 + ... + 41517.

It is an arithmetic number, because the mean of its divisors is an integer number (53222932).

Almost surely, 2^840048297 is an apocalyptic number.

It is an amenable number.

840048297 is a deficient number, since it is larger than the sum of its proper divisors (437302071).

840048297 is a wasteful number, since it uses less digits than its factorization.

840048297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48181 (or 48158 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 840048297 is about 28983.5866828107. The cubic root of 840048297 is about 943.5568790871.

The spelling of 840048297 in words is "eight hundred forty million, forty-eight thousand, two hundred ninety-seven".