22167238428 has 36 divisors (see below), whose sum is σ = 57966057240. Its totient is φ = 7134283296.

The previous prime is 22167238427. The next prime is 22167238469. The reversal of 22167238428 is 82483276122.

22167238428 is a `hidden beast` number, since 2 + 216 + 7 + 2 + 3 + 8 + 428 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×22167238428² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22167238427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10615450 + ... + 10617537.

Almost surely, 2^22167238428 is an apocalyptic number.

It is an amenable number.

22167238428 is an abundant number, since it is smaller than the sum of its proper divisors (35798818812).

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

22167238428 is a wasteful number, since it uses less digits than its factorization.

22167238428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21233026 (or 21233021 counting only the distinct ones).

The product of its digits is 516096, while the sum is 45.

It can be divided in two parts, 221672 and 38428, that added together give a square (260100 = 510²).

The spelling of 22167238428 in words is "twenty-two billion, one hundred sixty-seven million, two hundred thirty-eight thousand, four hundred twenty-eight".