1355969688 has 32 divisors (see below), whose sum is σ = 3395895360. Its totient is φ = 451193760.

The previous prime is 1355969687. The next prime is 1355969707. The reversal of 1355969688 is 8869695531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1355969687) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 35770 + ... + 63177.

It is an arithmetic number, because the mean of its divisors is an integer number (106121730).

Almost surely, 2^1355969688 is an apocalyptic number.

It is an amenable number.

1355969688 is an abundant number, since it is smaller than the sum of its proper divisors (2039925672).

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

1355969688 is a wasteful number, since it uses less digits than its factorization.

1355969688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99527 (or 99523 counting only the distinct ones).

The product of its digits is 13996800, while the sum is 60.

The square root of 1355969688 is about 36823.4936962804. The cubic root of 1355969688 is about 1106.8361296755.

The spelling of 1355969688 in words is "one billion, three hundred fifty-five million, nine hundred sixty-nine thousand, six hundred eighty-eight".