16381674 has 12 divisors (see below), whose sum is σ = 35493666. Its totient is φ = 5460552.

The previous prime is 16381661. The next prime is 16381691. The reversal of 16381674 is 47618361.

16381674 is a `hidden beast` number, since 1 + 638 + 16 + 7 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 14402025 + 1979649 = 3795^2 + 1407^2 .

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 455029 + ... + 455064.

Almost surely, 2^16381674 is an apocalyptic number.

16381674 is an abundant number, since it is smaller than the sum of its proper divisors (19111992).

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

16381674 is a wasteful number, since it uses less digits than its factorization.

16381674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910101 (or 910098 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 16381674 is about 4047.4280722454. The cubic root of 16381674 is about 253.9721485571.

The spelling of 16381674 in words is "sixteen million, three hundred eighty-one thousand, six hundred seventy-four".