1189959552 has 256 divisors, whose sum is σ = 3760128000. Its totient is φ = 369653760.

The previous prime is 1189959539. The next prime is 1189959571. The reversal of 1189959552 is 2559599811.

1189959552 is a `hidden beast` number, since 1 + 1 + 89 + 9 + 5 + 9 + 552 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3106753 + ... + 3107135.

It is an arithmetic number, because the mean of its divisors is an integer number (14688000).

Almost surely, 2^1189959552 is an apocalyptic number.

1189959552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1189959552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1880064000).

1189959552 is an abundant number, since it is smaller than the sum of its proper divisors (2570168448).

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

1189959552 is a wasteful number, since it uses less digits than its factorization.

1189959552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466 (or 448 counting only the distinct ones).

The product of its digits is 1458000, while the sum is 54.

The square root of 1189959552 is about 34495.7903518676. The cubic root of 1189959552 is about 1059.6864956344.

The spelling of 1189959552 in words is "one billion, one hundred eighty-nine million, nine hundred fifty-nine thousand, five hundred fifty-two".