16172408 has 32 divisors (see below), whose sum is σ = 34992000. Its totient is φ = 6863712.

The previous prime is 16172407. The next prime is 16172417. The reversal of 16172408 is 80427161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16172407) 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, 4643 + ... + 7341.

It is an arithmetic number, because the mean of its divisors is an integer number (1093500).

Almost surely, 2^16172408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16172408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17496000).

16172408 is an abundant number, since it is smaller than the sum of its proper divisors (18819592).

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

16172408 is a wasteful number, since it uses less digits than its factorization.

16172408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2819 (or 2815 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 16172408 is about 4021.4932549987. The cubic root of 16172408 is about 252.8860636709.

Adding to 16172408 its reverse (80427161), we get a palindrome (96599569).

The spelling of 16172408 in words is "sixteen million, one hundred seventy-two thousand, four hundred eight".