16416040 has 16 divisors (see below), whose sum is σ = 36936180. Its totient is φ = 6566400.

The previous prime is 16416013. The next prime is 16416073. The reversal of 16416040 is 4061461.

It can be written as a sum of positive squares in 2 ways, for example, as 16273156 + 142884 = 4034^2 + 378^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205161 + ... + 205240.

Almost surely, 2^16416040 is an apocalyptic number.

16416040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16416040 is an abundant number, since it is smaller than the sum of its proper divisors (20520140).

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

16416040 is a wasteful number, since it uses less digits than its factorization.

16416040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410412 (or 410408 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 16416040 is about 4051.6712601098. The cubic root of 16416040 is about 254.1496214793.

The spelling of 16416040 in words is "sixteen million, four hundred sixteen thousand, forty".