16404046290 has 160 divisors (see below), whose sum is σ = 45450765360. Its totient is φ = 4242585600.

The previous prime is 16404046289. The next prime is 16404046291. The reversal of 16404046290 is 9264040461.

16404046290 is a `hidden beast` number, since 1 + 640 + 4 + 0 + 4 + 6 + 2 + 9 + 0 = 666.

16404046290 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (16404046289) and next prime (16404046291).

It can be written as a sum of positive squares in 8 ways, for example, as 2361085281 + 14042961009 = 48591^2 + 118503^2 .

It is not an unprimeable number, because it can be changed into a prime (16404046291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 6009646 + ... + 6012374.

Almost surely, 2^16404046290 is an apocalyptic number.

16404046290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16404046290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22725382680).

16404046290 is an abundant number, since it is smaller than the sum of its proper divisors (29046719070).

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

16404046290 is a wasteful number, since it uses less digits than its factorization.

16404046290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2970 (or 2961 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The spelling of 16404046290 in words is "sixteen billion, four hundred four million, forty-six thousand, two hundred ninety".