2587443222 has 64 divisors (see below), whose sum is σ = 6473585664. Its totient is φ = 671207040.

The previous prime is 2587443217. The next prime is 2587443251. The reversal of 2587443222 is 2223447852.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5538 + ... + 72149.

It is an arithmetic number, because the mean of its divisors is an integer number (101149776).

Almost surely, 2^2587443222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2587443222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3236792832).

2587443222 is an abundant number, since it is smaller than the sum of its proper divisors (3886142442).

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

2587443222 is a wasteful number, since it uses less digits than its factorization.

2587443222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77773.

The product of its digits is 215040, while the sum is 39.

The square root of 2587443222 is about 50866.9167730854. The cubic root of 2587443222 is about 1372.8516484109.

It can be divided in two parts, 25874 and 43222, that added together give a palindrome (69096).

The spelling of 2587443222 in words is "two billion, five hundred eighty-seven million, four hundred forty-three thousand, two hundred twenty-two".