16445408 has 24 divisors (see below), whose sum is σ = 37002672. Its totient is φ = 7047936.

The previous prime is 16445399. The next prime is 16445419. The reversal of 16445408 is 80454461.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36485 + ... + 36932.

It is an arithmetic number, because the mean of its divisors is an integer number (1541778).

Almost surely, 2^16445408 is an apocalyptic number.

It is an amenable number.

16445408 is an abundant number, since it is smaller than the sum of its proper divisors (20557264).

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

16445408 is an equidigital number, since it uses as much as digits as its factorization.

16445408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73434 (or 73426 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 16445408 is about 4055.2938241267. The cubic root of 16445408 is about 254.3010875575.

Adding to 16445408 its reverse (80454461), we get a palindrome (96899869).

The spelling of 16445408 in words is "sixteen million, four hundred forty-five thousand, four hundred eight".