19740466 has 8 divisors (see below), whose sum is σ = 29695644. Its totient is φ = 9841920.

The previous prime is 19740431. The next prime is 19740473. The reversal of 19740466 is 66404791.

It can be written as a sum of positive squares in 2 ways, for example, as 19053225 + 687241 = 4365^2 + 829^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13275 + ... + 14686.

Almost surely, 2^19740466 is an apocalyptic number.

19740466 is a deficient number, since it is larger than the sum of its proper divisors (9955178).

19740466 is a wasteful number, since it uses less digits than its factorization.

19740466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28316.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 19740466 is about 4443.0244203695. The cubic root of 19740466 is about 270.2625064705.

The spelling of 19740466 in words is "nineteen million, seven hundred forty thousand, four hundred sixty-six".