861410264 has 64 divisors (see below), whose sum is σ = 2009175840. Its totient is φ = 340162560.

The previous prime is 861410261. The next prime is 861410267. The reversal of 861410264 is 462014168.

It is an interprime number because it is at equal distance from previous prime (861410261) and next prime (861410267).

It is a self number, because there is not a number n which added to its sum of digits gives 861410264.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (861410261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2699 + ... + 41594.

Almost surely, 2^861410264 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 861410264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1004587920).

861410264 is an abundant number, since it is smaller than the sum of its proper divisors (1147765576).

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

861410264 is a wasteful number, since it uses less digits than its factorization.

861410264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44340 (or 44336 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 861410264 is about 29349.7915495153. The cubic root of 861410264 is about 951.4880701015.

The spelling of 861410264 in words is "eight hundred sixty-one million, four hundred ten thousand, two hundred sixty-four".