21074200 has 48 divisors (see below), whose sum is σ = 56000880. Its totient is φ = 7224960.

The previous prime is 21074197. The next prime is 21074227. The reversal of 21074200 is 247012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6127 + ... + 8926.

It is an arithmetic number, because the mean of its divisors is an integer number (1166685).

Almost surely, 2^21074200 is an apocalyptic number.

21074200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21074200 is an abundant number, since it is smaller than the sum of its proper divisors (34926680).

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

21074200 is a wasteful number, since it uses less digits than its factorization.

21074200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15076 (or 15067 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 21074200 is about 4590.6644399259. The cubic root of 21074200 is about 276.2169756391.

The spelling of 21074200 in words is "twenty-one million, seventy-four thousand, two hundred".