21460104 has 48 divisors (see below), whose sum is σ = 60652800. Its totient is φ = 6841824.

The previous prime is 21460099. The next prime is 21460123. The reversal of 21460104 is 40106412.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 11 ways as a sum of consecutive naturals, for example, 4824 + ... + 8135.

It is an arithmetic number, because the mean of its divisors is an integer number (1263600).

Almost surely, 2^21460104 is an apocalyptic number.

21460104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

21460104 is an abundant number, since it is smaller than the sum of its proper divisors (39192696).

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

21460104 is a wasteful number, since it uses less digits than its factorization.

21460104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12994 (or 12987 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 21460104 is about 4632.5051538018. The cubic root of 21460104 is about 277.8927868411.

Adding to 21460104 its reverse (40106412), we get a palindrome (61566516).

The spelling of 21460104 in words is "twenty-one million, four hundred sixty thousand, one hundred four".