867982140 has 36 divisors (see below), whose sum is σ = 2632879704. Its totient is φ = 231461856.

The previous prime is 867982127. The next prime is 867982153. The reversal of 867982140 is 41289768.

It is an interprime number because it is at equal distance from previous prime (867982127) and next prime (867982153).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2410882 + ... + 2411241.

Almost surely, 2^867982140 is an apocalyptic number.

It is an amenable number.

867982140 is an abundant number, since it is smaller than the sum of its proper divisors (1764897564).

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

867982140 is a wasteful number, since it uses less digits than its factorization.

867982140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4822138 (or 4822133 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 867982140 is about 29461.5366198031. The cubic root of 867982140 is about 953.9016419567.

It can be divided in two parts, 8679821 and 40, that added together give a triangular number (8679861 = T₄₁₆₆).

The spelling of 867982140 in words is "eight hundred sixty-seven million, nine hundred eighty-two thousand, one hundred forty".