1241087728 has 40 divisors (see below), whose sum is σ = 2590119936. Its totient is φ = 574411200.

The previous prime is 1241087711. The next prime is 1241087747. The reversal of 1241087728 is 8277801421.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42988 + ... + 65803.

Almost surely, 2^1241087728 is an apocalyptic number.

It is an amenable number.

1241087728 is an abundant number, since it is smaller than the sum of its proper divisors (1349032208).

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

1241087728 is a wasteful number, since it uses less digits than its factorization.

1241087728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108853 (or 108847 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 40.

The square root of 1241087728 is about 35229.0750375311. The cubic root of 1241087728 is about 1074.6511153398.

It can be divided in two parts, 1 and 241087728, that added together give a square (241087729 = 15527²).

The spelling of 1241087728 in words is "one billion, two hundred forty-one million, eighty-seven thousand, seven hundred twenty-eight".