111778328 has 32 divisors (see below), whose sum is σ = 215384400. Its totient is φ = 54354048.

The previous prime is 111778327. The next prime is 111778333. The reversal of 111778328 is 823877111.

It is a super-2 number, since 2×111778328² = 24988789220951168, which contains 22 as substring.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 111778291 and 111778300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111778327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100238 + ... + 101346.

Almost surely, 2^111778328 is an apocalyptic number.

It is an amenable number.

111778328 is a deficient number, since it is larger than the sum of its proper divisors (103606072).

111778328 is a wasteful number, since it uses less digits than its factorization.

111778328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1451 (or 1447 counting only the distinct ones).

The product of its digits is 18816, while the sum is 38.

The square root of 111778328 is about 10572.5270394547. The cubic root of 111778328 is about 481.7102302657.

The spelling of 111778328 in words is "one hundred eleven million, seven hundred seventy-eight thousand, three hundred twenty-eight".