111669424 has 20 divisors (see below), whose sum is σ = 217615536. Its totient is φ = 55510592.

The previous prime is 111669421. The next prime is 111669431. The reversal of 111669424 is 424966111.

It is a happy number.

It is a super-3 number, since 3×111669424³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111669424.

It is not an unprimeable number, because it can be changed into a prime (111669421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17404 + ... + 22939.

Almost surely, 2^111669424 is an apocalyptic number.

It is an amenable number.

111669424 is a deficient number, since it is larger than the sum of its proper divisors (105946112).

111669424 is a wasteful number, since it uses less digits than its factorization.

111669424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40524 (or 40518 counting only the distinct ones).

The product of its digits is 10368, while the sum is 34.

The square root of 111669424 is about 10567.3754546718. The cubic root of 111669424 is about 481.5537383406.

The spelling of 111669424 in words is "one hundred eleven million, six hundred sixty-nine thousand, four hundred twenty-four".