16149804 has 24 divisors (see below), whose sum is σ = 41108928. Its totient is φ = 4893840.

The previous prime is 16149803. The next prime is 16149817. The reversal of 16149804 is 40894161.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (16149803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61042 + ... + 61305.

It is an arithmetic number, because the mean of its divisors is an integer number (1712872).

Almost surely, 2^16149804 is an apocalyptic number.

It is an amenable number.

16149804 is an abundant number, since it is smaller than the sum of its proper divisors (24959124).

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

16149804 is a wasteful number, since it uses less digits than its factorization.

16149804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122365 (or 122363 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 16149804 is about 4018.6818734505. The cubic root of 16149804 is about 252.7681900302.

The spelling of 16149804 in words is "sixteen million, one hundred forty-nine thousand, eight hundred four".