21076120 has 32 divisors (see below), whose sum is σ = 51070320. Its totient is φ = 7781760.

The previous prime is 21076093. The next prime is 21076129. The reversal of 21076120 is 2167012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21076129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19746 + ... + 20785.

Almost surely, 2^21076120 is an apocalyptic number.

21076120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21076120 is an abundant number, since it is smaller than the sum of its proper divisors (29994200).

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

21076120 is a wasteful number, since it uses less digits than its factorization.

21076120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40555 (or 40551 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 21076120 is about 4590.8735552180. The cubic root of 21076120 is about 276.2253637865.

The spelling of 21076120 in words is "twenty-one million, seventy-six thousand, one hundred twenty".