16779450 has 24 divisors (see below), whose sum is σ = 41613408. Its totient is φ = 4474480.

The previous prime is 16779449. The next prime is 16779461. The reversal of 16779450 is 5497761.

It is a junction number, because it is equal to n+sod(n) for n = 16779399 and 16779408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55782 + ... + 56081.

It is an arithmetic number, because the mean of its divisors is an integer number (1733892).

Almost surely, 2^16779450 is an apocalyptic number.

16779450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16779450 is an abundant number, since it is smaller than the sum of its proper divisors (24833958).

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

16779450 is a wasteful number, since it uses less digits than its factorization.

16779450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111878 (or 111873 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 39.

The square root of 16779450 is about 4096.2726960006. The cubic root of 16779450 is about 256.0113622073.

The spelling of 16779450 in words is "sixteen million, seven hundred seventy-nine thousand, four hundred fifty".