16404950 has 48 divisors (see below), whose sum is σ = 31872960. Its totient is φ = 6277920.

The previous prime is 16404937. The next prime is 16404953. The reversal of 16404950 is 5940461.

16404950 = T₃₃₉ + T₃₄₀ + ... + T₅₁₅.

It is a zygodrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16404953) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 197609 + ... + 197691.

It is an arithmetic number, because the mean of its divisors is an integer number (664020).

Almost surely, 2^16404950 is an apocalyptic number.

16404950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16404950 is a deficient number, since it is larger than the sum of its proper divisors (15468010).

16404950 is a wasteful number, since it uses less digits than its factorization.

16404950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221 (or 216 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 16404950 is about 4050.3024578419. The cubic root of 16404950 is about 254.0923775838.

The spelling of 16404950 in words is "sixteen million, four hundred four thousand, nine hundred fifty".