19995474 has 8 divisors (see below), whose sum is σ = 39990960. Its totient is φ = 6665156.

The previous prime is 19995461. The next prime is 19995491. The reversal of 19995474 is 47459991.

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

19995474 is an admirable 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 3 ways as a sum of consecutive naturals, for example, 1666284 + ... + 1666295.

It is an arithmetic number, because the mean of its divisors is an integer number (4998870).

Almost surely, 2^19995474 is an apocalyptic number.

19995474 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

19995474 is a wasteful number, since it uses less digits than its factorization.

19995474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3332584.

The product of its digits is 408240, while the sum is 48.

The square root of 19995474 is about 4471.6299041848. The cubic root of 19995474 is about 271.4212843579.

It can be divided in two parts, 199954 and 74, that added together give a triangular number (200028 = T₆₃₂).

The spelling of 19995474 in words is "nineteen million, nine hundred ninety-five thousand, four hundred seventy-four".