1107633728 has 28 divisors (see below), whose sum is σ = 2313645360. Its totient is φ = 524668032.

The previous prime is 1107633721. The next prime is 1107633731. The reversal of 1107633728 is 8273367011.

It is a super-3 number, since 3×1107633728³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 1107633691 and 1107633700.

It is not an unprimeable number, because it can be changed into a prime (1107633721) 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, 454226 + ... + 456657.

Almost surely, 2^1107633728 is an apocalyptic number.

It is an amenable number.

1107633728 is an abundant number, since it is smaller than the sum of its proper divisors (1206011632).

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

1107633728 is an equidigital number, since it uses as much as digits as its factorization.

1107633728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910914 (or 910904 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 1107633728 is about 33281.1317115269. The cubic root of 1107633728 is about 1034.6625357058.

The spelling of 1107633728 in words is "one billion, one hundred seven million, six hundred thirty-three thousand, seven hundred twenty-eight".