8542222458 has 256 divisors, whose sum is σ = 23422058496. Its totient is φ = 2009456640.

The previous prime is 8542222439. The next prime is 8542222487.

It is a happy number.

8542222458 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 26946916 + ... + 26947232.

It is an arithmetic number, because the mean of its divisors is an integer number (91492416).

Almost surely, 2^8542222458 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8542222458, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11711029248).

8542222458 is an abundant number, since it is smaller than the sum of its proper divisors (14879836038).

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

8542222458 is a wasteful number, since it uses less digits than its factorization.

8542222458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477.

The product of its digits is 409600, while the sum is 42.

The square root of 8542222458 is about 92424.1443455118. The cubic root of 8542222458 is about 2044.2011380669.

It can be divided in two parts, 85422 and 22458, that added together give a triangular number (107880 = T₄₆₄).

The spelling of 8542222458 in words is "eight billion, five hundred forty-two million, two hundred twenty-two thousand, four hundred fifty-eight".