1346990988 has 72 divisors (see below), whose sum is σ = 3871212912. Its totient is φ = 362213376.

The previous prime is 1346990969. The next prime is 1346990993. The reversal of 1346990988 is 8890996431.

It is a super-2 number, since 2×1346990988² = 3628769443506432288, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57381 + ... + 77372.

It is an arithmetic number, because the mean of its divisors is an integer number (53766846).

Almost surely, 2^1346990988 is an apocalyptic number.

It is an amenable number.

1346990988 is an abundant number, since it is smaller than the sum of its proper divisors (2524221924).

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

1346990988 is a wasteful number, since it uses less digits than its factorization.

1346990988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134791 (or 134782 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 57.

The square root of 1346990988 is about 36701.3758325216. The cubic root of 1346990988 is about 1104.3877057997.

The spelling of 1346990988 in words is "one billion, three hundred forty-six million, nine hundred ninety thousand, nine hundred eighty-eight".