1189339420 has 48 divisors (see below), whose sum is σ = 2528064000. Its totient is φ = 469972800.

The previous prime is 1189339373. The next prime is 1189339421. The reversal of 1189339420 is 249339811.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1189339421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 599991 + ... + 601969.

It is an arithmetic number, because the mean of its divisors is an integer number (52668000).

Almost surely, 2^1189339420 is an apocalyptic number.

1189339420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1189339420 is an abundant number, since it is smaller than the sum of its proper divisors (1338724580).

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

1189339420 is a wasteful number, since it uses less digits than its factorization.

1189339420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2338 (or 2336 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 1189339420 is about 34486.8006634422. The cubic root of 1189339420 is about 1059.5023830198.

The spelling of 1189339420 in words is "one billion, one hundred eighty-nine million, three hundred thirty-nine thousand, four hundred twenty".