860043420 has 120 divisors (see below), whose sum is σ = 2715373584. Its totient is φ = 227867904.

The previous prime is 860043409. The next prime is 860043433. The reversal of 860043420 is 24340068.

860043420 is a `hidden beast` number, since 8 + 600 + 4 + 34 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 262432 + ... + 265688.

Almost surely, 2^860043420 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 860043420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1357686792).

860043420 is an abundant number, since it is smaller than the sum of its proper divisors (1855330164).

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

860043420 is a wasteful number, since it uses less digits than its factorization.

860043420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3441 (or 3430 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 860043420 is about 29326.4968927419. The cubic root of 860043420 is about 950.9845453210.

Adding to 860043420 its reverse (24340068), we get a palindrome (884383488).

The spelling of 860043420 in words is "eight hundred sixty million, forty-three thousand, four hundred twenty".