888400040 has 64 divisors (see below), whose sum is σ = 2202318720. Its totient is φ = 319840000.

The previous prime is 888400027. The next prime is 888400069. The reversal of 888400040 is 40004888.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34445 + ... + 54435.

It is an arithmetic number, because the mean of its divisors is an integer number (34411230).

Almost surely, 2^888400040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 888400040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1101159360).

888400040 is an abundant number, since it is smaller than the sum of its proper divisors (1313918680).

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

888400040 is a wasteful number, since it uses less digits than its factorization.

888400040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20114 (or 20110 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 32.

The square root of 888400040 is about 29806.0403274236. The cubic root of 888400040 is about 961.3234206916.

The spelling of 888400040 in words is "eight hundred eighty-eight million, four hundred thousand, forty".