19049982 has 16 divisors (see below), whose sum is σ = 43542912. Its totient is φ = 5442840.

The previous prime is 19049977. The next prime is 19049983. The reversal of 19049982 is 28994091.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 453571 = 19049982 / (1 + 9 + 0 + 4 + 9 + 9 + 8 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19049983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226744 + ... + 226827.

It is an arithmetic number, because the mean of its divisors is an integer number (2721432).

Almost surely, 2^19049982 is an apocalyptic number.

19049982 is an abundant number, since it is smaller than the sum of its proper divisors (24492930).

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

19049982 is a wasteful number, since it uses less digits than its factorization.

19049982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453583.

The product of its (nonzero) digits is 46656, while the sum is 42.

The square root of 19049982 is about 4364.6285065284. The cubic root of 19049982 is about 267.0739460492.

The spelling of 19049982 in words is "nineteen million, forty-nine thousand, nine hundred eighty-two".