19449982 has 8 divisors (see below), whose sum is σ = 29193696. Its totient is φ = 9718752.

The previous prime is 19449979. The next prime is 19450001. The reversal of 19449982 is 28994491.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 4438 + ... + 7654.

It is an arithmetic number, because the mean of its divisors is an integer number (3649212).

Almost surely, 2^19449982 is an apocalyptic number.

19449982 is a deficient number, since it is larger than the sum of its proper divisors (9743714).

19449982 is a wasteful number, since it uses less digits than its factorization.

19449982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6242.

The product of its digits is 186624, while the sum is 46.

The square root of 19449982 is about 4410.2133735229. The cubic root of 19449982 is about 268.9302989167.

It can be divided in two parts, 194 and 49982, that added together give a square (50176 = 224²).

The spelling of 19449982 in words is "nineteen million, four hundred forty-nine thousand, nine hundred eighty-two".