840631088 has 20 divisors (see below), whose sum is σ = 1776788808. Its totient is φ = 382104960.

The previous prime is 840631087. The next prime is 840631097. The reversal of 840631088 is 880136048.

It is a super-2 number, since 2×840631088² = 1413321252224127488, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (840631087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2387981 + ... + 2388332.

Almost surely, 2^840631088 is an apocalyptic number.

840631088 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

840631088 is an abundant number, since it is smaller than the sum of its proper divisors (936157720).

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

840631088 is a wasteful number, since it uses less digits than its factorization.

840631088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4776332 (or 4776326 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 840631088 is about 28993.6387505949. The cubic root of 840631088 is about 943.7750289811.

The spelling of 840631088 in words is "eight hundred forty million, six hundred thirty-one thousand, eighty-eight".