16449804 has 60 divisors (see below), whose sum is σ = 49153104. Its totient is φ = 4699296.

The previous prime is 16449743. The next prime is 16449817. The reversal of 16449804 is 40894461.

It is a happy number.

16449804 is a `hidden beast` number, since 1 + 644 + 9 + 8 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1359 + ... + 5894.

Almost surely, 2^16449804 is an apocalyptic number.

16449804 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

16449804 is an abundant number, since it is smaller than the sum of its proper divisors (32703300).

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

16449804 is a wasteful number, since it uses less digits than its factorization.

16449804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7276 (or 7265 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 16449804 is about 4055.8357954927. The cubic root of 16449804 is about 254.3237444999.

The spelling of 16449804 in words is "sixteen million, four hundred forty-nine thousand, eight hundred four".