1187228 has 24 divisors (see below), whose sum is σ = 2402400. Its totient is φ = 502848.

The previous prime is 1187227. The next prime is 1187233. The reversal of 1187228 is 8227811.

It is a self number, because there is not a number n which added to its sum of digits gives 1187228.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1187227) 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, 2858 + ... + 3246.

It is an arithmetic number, because the mean of its divisors is an integer number (100100).

2^1187228 is an apocalyptic number.

It is an amenable number.

1187228 is an abundant number, since it is smaller than the sum of its proper divisors (1215172).

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

1187228 is a wasteful number, since it uses less digits than its factorization.

1187228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509 (or 507 counting only the distinct ones).

The product of its digits is 1792, while the sum is 29.

The square root of 1187228 is about 1089.5999265786. The cubic root of 1187228 is about 105.8875037678.

The spelling of 1187228 in words is "one million, one hundred eighty-seven thousand, two hundred twenty-eight".