1115632428 has 48 divisors (see below), whose sum is σ = 2651099136. Its totient is φ = 365074560.

The previous prime is 1115632421. The next prime is 1115632451. The reversal of 1115632428 is 8242365111.

It is not an unprimeable number, because it can be changed into a prime (1115632421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192493 + ... + 198203.

It is an arithmetic number, because the mean of its divisors is an integer number (55231232).

Almost surely, 2^1115632428 is an apocalyptic number.

It is an amenable number.

1115632428 is an abundant number, since it is smaller than the sum of its proper divisors (1535466708).

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

1115632428 is a wasteful number, since it uses less digits than its factorization.

1115632428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6014 (or 6012 counting only the distinct ones).

The product of its digits is 11520, while the sum is 33.

The square root of 1115632428 is about 33401.0842338988. The cubic root of 1115632428 is about 1037.1471456582.

Adding to 1115632428 its reverse (8242365111), we get a palindrome (9357997539).

The spelling of 1115632428 in words is "one billion, one hundred fifteen million, six hundred thirty-two thousand, four hundred twenty-eight".