1167261228 has 72 divisors (see below), whose sum is σ = 3480888320. Its totient is φ = 322742880.

The previous prime is 1167261127. The next prime is 1167261253. The reversal of 1167261228 is 8221627611.

1167261228 is a `hidden beast` number, since 1 + 16 + 7 + 2 + 612 + 28 = 666.

1167261228 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1167261192 and 1167261201.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66898 + ... + 82521.

Almost surely, 2^1167261228 is an apocalyptic number.

1167261228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1167261228 is an abundant number, since it is smaller than the sum of its proper divisors (2313627092).

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

1167261228 is a wasteful number, since it uses less digits than its factorization.

1167261228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149467 (or 149462 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 1167261228 is about 34165.2049313333. The cubic root of 1167261228 is about 1052.9054008192.

Adding to 1167261228 its reverse (8221627611), we get a palindrome (9388888839).

It can be divided in two parts, 11672 and 61228, that added together give a square (72900 = 270²).

The spelling of 1167261228 in words is "one billion, one hundred sixty-seven million, two hundred sixty-one thousand, two hundred twenty-eight".