1189649532 has 12 divisors (see below), whose sum is σ = 2775848936. Its totient is φ = 396549840.

The previous prime is 1189649467. The next prime is 1189649581. The reversal of 1189649532 is 2359469811.

1189649532 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49568719 + ... + 49568742.

Almost surely, 2^1189649532 is an apocalyptic number.

1189649532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1189649532 is an abundant number, since it is smaller than the sum of its proper divisors (1586199404).

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

1189649532 is a wasteful number, since it uses less digits than its factorization.

1189649532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99137468 (or 99137466 counting only the distinct ones).

The product of its digits is 466560, while the sum is 48.

The square root of 1189649532 is about 34491.2964673699. The cubic root of 1189649532 is about 1059.5944609819.

The spelling of 1189649532 in words is "one billion, one hundred eighty-nine million, six hundred forty-nine thousand, five hundred thirty-two".