16404450 has 24 divisors (see below), whose sum is σ = 40683408. Its totient is φ = 4374480.

The previous prime is 16404449. The next prime is 16404461. The reversal of 16404450 is 5440461.

It is a self number, because there is not a number n which added to its sum of digits gives 16404450.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54532 + ... + 54831.

It is an arithmetic number, because the mean of its divisors is an integer number (1695142).

Almost surely, 2^16404450 is an apocalyptic number.

16404450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16404450 is an abundant number, since it is smaller than the sum of its proper divisors (24278958).

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

16404450 is a wasteful number, since it uses less digits than its factorization.

16404450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109378 (or 109373 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 16404450 is about 4050.2407335861. The cubic root of 16404450 is about 254.0897960972.

The spelling of 16404450 in words is "sixteen million, four hundred four thousand, four hundred fifty".