870998940 has 192 divisors, whose sum is σ = 3197214720. Its totient is φ = 192637440.

The previous prime is 870998923. The next prime is 870998959. The reversal of 870998940 is 49899078.

It is a super-2 number, since 2×870998940² = 1517278306962247200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 113464 + ... + 120896.

It is an arithmetic number, because the mean of its divisors is an integer number (16652160).

Almost surely, 2^870998940 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 870998940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1598607360).

870998940 is an abundant number, since it is smaller than the sum of its proper divisors (2326215780).

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

870998940 is a wasteful number, since it uses less digits than its factorization.

870998940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7489 (or 7481 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The square root of 870998940 is about 29512.6911683770. The cubic root of 870998940 is about 955.0055060308.

The spelling of 870998940 in words is "eight hundred seventy million, nine hundred ninety-eight thousand, nine hundred forty".