16400076 has 48 divisors (see below), whose sum is σ = 47712000. Its totient is φ = 4259520.

The previous prime is 16400047. The next prime is 16400093. The reversal of 16400076 is 67000461.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7951 + ... + 9798.

It is an arithmetic number, because the mean of its divisors is an integer number (994000).

Almost surely, 2^16400076 is an apocalyptic number.

It is an amenable number.

16400076 is an abundant number, since it is smaller than the sum of its proper divisors (31311924).

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

16400076 is a wasteful number, since it uses less digits than its factorization.

16400076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17774 (or 17772 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 16400076 is about 4049.7007296836. The cubic root of 16400076 is about 254.0672110148.

The spelling of 16400076 in words is "sixteen million, four hundred thousand, seventy-six".