211604080 has 20 divisors (see below), whose sum is σ = 491979672. Its totient is φ = 84641600.

The previous prime is 211604077. The next prime is 211604111. The reversal of 211604080 is 80406112.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1322446 + ... + 1322605.

Almost surely, 2^211604080 is an apocalyptic number.

211604080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211604080 is an abundant number, since it is smaller than the sum of its proper divisors (280375592).

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

211604080 is a wasteful number, since it uses less digits than its factorization.

211604080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2645064 (or 2645058 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 211604080 is about 14546.6174762382. The cubic root of 211604080 is about 595.9017750233.

The spelling of 211604080 in words is "two hundred eleven million, six hundred four thousand, eighty".