870983440 has 160 divisors (see below), whose sum is σ = 2251570176. Its totient is φ = 311869440.

The previous prime is 870983401. The next prime is 870983473. The reversal of 870983440 is 44389078.

It is a super-2 number, since 2×870983440² = 1517224305508467200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3077539 + ... + 3077821.

Almost surely, 2^870983440 is an apocalyptic number.

870983440 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 870983440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1125785088).

870983440 is an abundant number, since it is smaller than the sum of its proper divisors (1380586736).

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

870983440 is a wasteful number, since it uses less digits than its factorization.

870983440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417 (or 411 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 870983440 is about 29512.4285683168. The cubic root of 870983440 is about 954.9998410131. Note that the first 3 decimals are identical.

The spelling of 870983440 in words is "eight hundred seventy million, nine hundred eighty-three thousand, four hundred forty".