16804649240 has 16 divisors (see below), whose sum is σ = 37810460880. Its totient is φ = 6721859680.

The previous prime is 16804649221. The next prime is 16804649249. The reversal of 16804649240 is 4294640861.

It is a junction number, because it is equal to n+sod(n) for n = 16804649191 and 16804649200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16804649249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210058076 + ... + 210058155.

It is an arithmetic number, because the mean of its divisors is an integer number (2363153805).

Almost surely, 2^16804649240 is an apocalyptic number.

16804649240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16804649240 is an abundant number, since it is smaller than the sum of its proper divisors (21005811640).

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

16804649240 is a wasteful number, since it uses less digits than its factorization.

16804649240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420116242 (or 420116238 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 44.

The spelling of 16804649240 in words is "sixteen billion, eight hundred four million, six hundred forty-nine thousand, two hundred forty".