19474 has 16 divisors (see below), whose sum is σ = 36288. Its totient is φ = 7632.

The previous prime is 19471. The next prime is 19477. The reversal of 19474 is 47491.

It is an interprime number because it is at equal distance from previous prime (19471) and next prime (19477).

It is not an unprimeable number, because it can be changed into a prime (19471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129 + ... + 235.

It is an arithmetic number, because the mean of its divisors is an integer number (2268).

2¹⁹⁴⁷⁴ is an apocalyptic number.

19474 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

19474 is a deficient number, since it is larger than the sum of its proper divisors (16814).

19474 is a wasteful number, since it uses less digits than its factorization.

19474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129.

The product of its digits is 1008, while the sum is 25.

The square root of 19474 is about 139.5492744517. The cubic root of 19474 is about 26.9040950450.

The spelling of 19474 in words is "nineteen thousand, four hundred seventy-four".