842227100 has 72 divisors (see below), whose sum is σ = 2147185488. Its totient is φ = 282700800.

The previous prime is 842227027. The next prime is 842227109. The reversal of 842227100 is 1722248.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 842227100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842227109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15149 + ... + 43748.

Almost surely, 2^842227100 is an apocalyptic number.

It is an amenable number.

842227100 is an abundant number, since it is smaller than the sum of its proper divisors (1304958388).

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

842227100 is a wasteful number, since it uses less digits than its factorization.

842227100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58935 (or 58928 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 842227100 is about 29021.1491846894. The cubic root of 842227100 is about 944.3719313288.

Adding to 842227100 its reverse (1722248), we get a palindrome (843949348).

The spelling of 842227100 in words is "eight hundred forty-two million, two hundred twenty-seven thousand, one hundred".