861702140 has 24 divisors (see below), whose sum is σ = 1948773120. Its totient is φ = 318166848.

The previous prime is 861702113. The next prime is 861702167. The reversal of 861702140 is 41207168.

It is an interprime number because it is at equal distance from previous prime (861702113) and next prime (861702167).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1656860 + ... + 1657379.

It is an arithmetic number, because the mean of its divisors is an integer number (81198880).

Almost surely, 2^861702140 is an apocalyptic number.

It is an amenable number.

861702140 is an abundant number, since it is smaller than the sum of its proper divisors (1087070980).

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

861702140 is a wasteful number, since it uses less digits than its factorization.

861702140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3314261 (or 3314259 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 861702140 is about 29354.7634975995. The cubic root of 861702140 is about 951.5955238058.

The spelling of 861702140 in words is "eight hundred sixty-one million, seven hundred two thousand, one hundred forty".