16127890 has 16 divisors (see below), whose sum is σ = 29429208. Its totient is φ = 6362496.

The previous prime is 16127879. The next prime is 16127897. The reversal of 16127890 is 9872161.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 15578809 + 549081 = 3947^2 + 741^2 .

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

It is not an unprimeable number, because it can be changed into a prime (16127897) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 10317 + ... + 11776.

Almost surely, 2^16127890 is an apocalyptic number.

16127890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16127890 is a deficient number, since it is larger than the sum of its proper divisors (13301318).

16127890 is a wasteful number, since it uses less digits than its factorization.

16127890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22173.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 16127890 is about 4015.9544320124. The cubic root of 16127890 is about 252.6538095006.

The spelling of 16127890 in words is "sixteen million, one hundred twenty-seven thousand, eight hundred ninety".