1189240550 has 24 divisors (see below), whose sum is σ = 2214702000. Its totient is φ = 475112480.

The previous prime is 1189240537. The next prime is 1189240597. The reversal of 1189240550 is 550429811.

It is a self number, because there is not a number n which added to its sum of digits gives 1189240550.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27776 + ... + 56124.

It is an arithmetic number, because the mean of its divisors is an integer number (92279250).

Almost surely, 2^1189240550 is an apocalyptic number.

1189240550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1189240550 is a deficient number, since it is larger than the sum of its proper divisors (1025461450).

1189240550 is a wasteful number, since it uses less digits than its factorization.

1189240550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29200 (or 29195 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 35.

The square root of 1189240550 is about 34485.3671866779. The cubic root of 1189240550 is about 1059.4730233316.

The spelling of 1189240550 in words is "one billion, one hundred eighty-nine million, two hundred forty thousand, five hundred fifty".