1189549434 has 32 divisors (see below), whose sum is σ = 2473701120. Its totient is φ = 380889152.

The previous prime is 1189549421. The next prime is 1189549457. The reversal of 1189549434 is 4349459811.

It is a happy 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 15 ways as a sum of consecutive naturals, for example, 16927 + ... + 51629.

It is an arithmetic number, because the mean of its divisors is an integer number (77303160).

Almost surely, 2^1189549434 is an apocalyptic number.

1189549434 is an abundant number, since it is smaller than the sum of its proper divisors (1284151686).

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

1189549434 is a wasteful number, since it uses less digits than its factorization.

1189549434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34934.

The product of its digits is 622080, while the sum is 48.

The square root of 1189549434 is about 34489.8453751245. The cubic root of 1189549434 is about 1059.5647417920.

The spelling of 1189549434 in words is "one billion, one hundred eighty-nine million, five hundred forty-nine thousand, four hundred thirty-four".