16631474 has 8 divisors (see below), whose sum is σ = 26414748. Its totient is φ = 7826560.

The previous prime is 16631449. The next prime is 16631501. The reversal of 16631474 is 47413661.

It can be written as a sum of positive squares in 2 ways, for example, as 16459249 + 172225 = 4057^2 + 415^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 16631474.

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, 244547 + ... + 244614.

Almost surely, 2^16631474 is an apocalyptic number.

16631474 is a deficient number, since it is larger than the sum of its proper divisors (9783274).

16631474 is a wasteful number, since it uses less digits than its factorization.

16631474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489180.

The product of its digits is 12096, while the sum is 32.

The square root of 16631474 is about 4078.1704231187. The cubic root of 16631474 is about 255.2565609541.

The spelling of 16631474 in words is "sixteen million, six hundred thirty-one thousand, four hundred seventy-four".