16369638 has 16 divisors (see below), whose sum is σ = 32788800. Its totient is φ = 5448296.

The previous prime is 16369637. The next prime is 16369667. The reversal of 16369638 is 83696361.

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

It is a self number, because there is not a number n which added to its sum of digits gives 16369638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16369631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3313 + ... + 6611.

It is an arithmetic number, because the mean of its divisors is an integer number (2049300).

Almost surely, 2^16369638 is an apocalyptic number.

16369638 is an abundant number, since it is smaller than the sum of its proper divisors (16419162).

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

16369638 is a wasteful number, since it uses less digits than its factorization.

16369638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4131.

The product of its digits is 139968, while the sum is 42.

The square root of 16369638 is about 4045.9409288817. The cubic root of 16369638 is about 253.9099335535.

The spelling of 16369638 in words is "sixteen million, three hundred sixty-nine thousand, six hundred thirty-eight".