840008088 has 48 divisors (see below), whose sum is σ = 2394763800. Its totient is φ = 265265280.

The previous prime is 840008051. The next prime is 840008089. The reversal of 840008088 is 880800048.

It is a super-2 number, since 2×840008088² = 1411227175810831488, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840008089) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 305653 + ... + 308388.

Almost surely, 2^840008088 is an apocalyptic number.

It is an amenable number.

840008088 is an abundant number, since it is smaller than the sum of its proper divisors (1554755712).

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

840008088 is a wasteful number, since it uses less digits than its factorization.

840008088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614072 (or 614065 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 36.

The square root of 840008088 is about 28982.8930232991. The cubic root of 840008088 is about 943.5418243638.

The spelling of 840008088 in words is "eight hundred forty million, eight thousand, eighty-eight".