21410120 has 32 divisors (see below), whose sum is σ = 49836600. Its totient is φ = 8268288.

The previous prime is 21410117. The next prime is 21410141. The reversal of 21410120 is 2101412.

It can be written as a sum of positive squares in 4 ways, for example, as 19201924 + 2208196 = 4382^2 + 1486^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8069 + ... + 10388.

Almost surely, 2^21410120 is an apocalyptic number.

21410120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21410120 is an abundant number, since it is smaller than the sum of its proper divisors (28426480).

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

21410120 is a wasteful number, since it uses less digits than its factorization.

21410120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18497 (or 18493 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 21410120 is about 4627.1070875872. The cubic root of 21410120 is about 277.6768669308.

Adding to 21410120 its reverse (2101412), we get a palindrome (23511532).

The spelling of 21410120 in words is "twenty-one million, four hundred ten thousand, one hundred twenty".