16434138 has 32 divisors (see below), whose sum is σ = 39775104. Its totient is φ = 4419072.

The previous prime is 16434137. The next prime is 16434139. The reversal of 16434138 is 83143461.

It is an interprime number because it is at equal distance from previous prime (16434137) and next prime (16434139).

It is not an unprimeable number, because it can be changed into a prime (16434137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10795 + ... + 12222.

It is an arithmetic number, because the mean of its divisors is an integer number (1242972).

Almost surely, 2^16434138 is an apocalyptic number.

16434138 is an abundant number, since it is smaller than the sum of its proper divisors (23340966).

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

16434138 is a wasteful number, since it uses less digits than its factorization.

16434138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23046.

The product of its digits is 6912, while the sum is 30.

The square root of 16434138 is about 4053.9040442517. The cubic root of 16434138 is about 254.2429836339.

Adding to 16434138 its reverse (83143461), we get a palindrome (99577599).

The spelling of 16434138 in words is "sixteen million, four hundred thirty-four thousand, one hundred thirty-eight".