1909748552 has 16 divisors (see below), whose sum is σ = 3696288000. Its totient is φ = 924071760.

The previous prime is 1909748543. The next prime is 1909748569. The reversal of 1909748552 is 2558479091.

It is a self number, because there is not a number n which added to its sum of digits gives 1909748552.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3850052 + ... + 3850547.

It is an arithmetic number, because the mean of its divisors is an integer number (231018000).

Almost surely, 2^1909748552 is an apocalyptic number.

It is an amenable number.

1909748552 is a deficient number, since it is larger than the sum of its proper divisors (1786539448).

1909748552 is a wasteful number, since it uses less digits than its factorization.

1909748552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7700636 (or 7700632 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 50.

The square root of 1909748552 is about 43700.6699262151. The cubic root of 1909748552 is about 1240.6769959084.

The spelling of 1909748552 in words is "one billion, nine hundred nine million, seven hundred forty-eight thousand, five hundred fifty-two".