19049550 has 48 divisors (see below), whose sum is σ = 50882160. Its totient is φ = 4688640.

The previous prime is 19049489. The next prime is 19049587. The reversal of 19049550 is 5594091.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2935 + ... + 6834.

It is an arithmetic number, because the mean of its divisors is an integer number (1060045).

Almost surely, 2^19049550 is an apocalyptic number.

19049550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19049550 is an abundant number, since it is smaller than the sum of its proper divisors (31832610).

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

19049550 is a wasteful number, since it uses less digits than its factorization.

19049550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9797 (or 9792 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 33.

The square root of 19049550 is about 4364.5790174999. The cubic root of 19049550 is about 267.0719272054.

The spelling of 19049550 in words is "nineteen million, forty-nine thousand, five hundred fifty".