21448704200 has 96 divisors (see below), whose sum is σ = 62173431360. Its totient is φ = 6685305600.

The previous prime is 21448704163. The next prime is 21448704229. The reversal of 21448704200 is 240784412.

It is a super-4 number, since 4×21448704200⁴ (a number of 42 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 680987 + ... + 711786.

It is an arithmetic number, because the mean of its divisors is an integer number (647639910).

Almost surely, 2^21448704200 is an apocalyptic number.

21448704200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21448704200 is an abundant number, since it is smaller than the sum of its proper divisors (40724727160).

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

21448704200 is a wasteful number, since it uses less digits than its factorization.

21448704200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1392807 (or 1392798 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 32.

The spelling of 21448704200 in words is "twenty-one billion, four hundred forty-eight million, seven hundred four thousand, two hundred".