1133389428 has 24 divisors (see below), whose sum is σ = 2645260800. Its totient is φ = 377698560.

The previous prime is 1133389427. The next prime is 1133389483. The reversal of 1133389428 is 8249833311.

It is a self number, because there is not a number n which added to its sum of digits gives 1133389428.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1133389427) 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, 47748 + ... + 67428.

It is an arithmetic number, because the mean of its divisors is an integer number (110219200).

Almost surely, 2^1133389428 is an apocalyptic number.

It is an amenable number.

1133389428 is an abundant number, since it is smaller than the sum of its proper divisors (1511871372).

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

1133389428 is a wasteful number, since it uses less digits than its factorization.

1133389428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24487 (or 24485 counting only the distinct ones).

The product of its digits is 124416, while the sum is 42.

The square root of 1133389428 is about 33665.8495808438. The cubic root of 1133389428 is about 1042.6208024990.

The spelling of 1133389428 in words is "one billion, one hundred thirty-three million, three hundred eighty-nine thousand, four hundred twenty-eight".