862040064 has 156 divisors (see below), whose sum is σ = 2407564248. Its totient is φ = 274268160.

The previous prime is 862040041. The next prime is 862040093. The reversal of 862040064 is 460040268.

It is a super-2 number, since 2×862040064² = 1486226143882248192, which contains 22 as substring.

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, 11808732 + ... + 11808804.

Almost surely, 2^862040064 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 862040064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1203782124).

862040064 is an abundant number, since it is smaller than the sum of its proper divisors (1545524184).

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

862040064 is an equidigital number, since it uses as much as digits as its factorization.

862040064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162 (or 109 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 862040064 is about 29360.5187965063. The cubic root of 862040064 is about 951.7198997066.

It can be divided in two parts, 8620 and 40064, that added together give a palindrome (48684).

The spelling of 862040064 in words is "eight hundred sixty-two million, forty thousand, sixty-four".