1290989352 has 64 divisors (see below), whose sum is σ = 3415176000. Its totient is φ = 405540864.

The previous prime is 1290989341. The next prime is 1290989353. The reversal of 1290989352 is 2539890921.

It is not an unprimeable number, because it can be changed into a prime (1290989353) by changing a digit.

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, 80674 + ... + 95342.

It is an arithmetic number, because the mean of its divisors is an integer number (53362125).

Almost surely, 2^1290989352 is an apocalyptic number.

1290989352 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 1290989352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1707588000).

1290989352 is an abundant number, since it is smaller than the sum of its proper divisors (2124186648).

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

1290989352 is a wasteful number, since it uses less digits than its factorization.

1290989352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14890 (or 14886 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 48.

The square root of 1290989352 is about 35930.3402711413. The cubic root of 1290989352 is about 1088.8654558673.

The spelling of 1290989352 in words is "one billion, two hundred ninety million, nine hundred eighty-nine thousand, three hundred fifty-two".