1147472028 has 48 divisors (see below), whose sum is σ = 3044124160. Its totient is φ = 373594032.

The previous prime is 1147472017. The next prime is 1147472057. The reversal of 1147472028 is 8202747411.

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 = 1147471983 and 1147472001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118900 + ... + 128187.

Almost surely, 2^1147472028 is an apocalyptic number.

1147472028 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1147472028 is an abundant number, since it is smaller than the sum of its proper divisors (1896652132).

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

1147472028 is a wasteful number, since it uses less digits than its factorization.

1147472028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247143 (or 247135 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 1147472028 is about 33874.3564957329. The cubic root of 1147472028 is about 1046.9213001493.

The spelling of 1147472028 in words is "one billion, one hundred forty-seven million, four hundred seventy-two thousand, twenty-eight".