16406634 has 16 divisors (see below), whose sum is σ = 33945120. Its totient is φ = 5280240.

The previous prime is 16406629. The next prime is 16406639. The reversal of 16406634 is 43660461.

It is an interprime number because it is at equal distance from previous prime (16406629) and next prime (16406639).

It is not an unprimeable number, because it can be changed into a prime (16406639) 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, 46972 + ... + 47319.

It is an arithmetic number, because the mean of its divisors is an integer number (2121570).

Almost surely, 2^16406634 is an apocalyptic number.

16406634 is an abundant number, since it is smaller than the sum of its proper divisors (17538486).

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

16406634 is a wasteful number, since it uses less digits than its factorization.

16406634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94325.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 16406634 is about 4050.5103382167. The cubic root of 16406634 is about 254.1010716451.

The spelling of 16406634 in words is "sixteen million, four hundred six thousand, six hundred thirty-four".