21074676 has 24 divisors (see below), whose sum is σ = 56199360. Its totient is φ = 6021312.

The previous prime is 21074657. The next prime is 21074681. The reversal of 21074676 is 67647012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125361 + ... + 125528.

It is an arithmetic number, because the mean of its divisors is an integer number (2341640).

Almost surely, 2^21074676 is an apocalyptic number.

It is an amenable number.

21074676 is an abundant number, since it is smaller than the sum of its proper divisors (35124684).

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

21074676 is a wasteful number, since it uses less digits than its factorization.

21074676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250903 (or 250901 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 21074676 is about 4590.7162839801. The cubic root of 21074676 is about 276.2190552481.

The spelling of 21074676 in words is "twenty-one million, seventy-four thousand, six hundred seventy-six".