21460130 has 16 divisors (see below), whose sum is σ = 38681280. Its totient is φ = 8572272.

The previous prime is 21460123. The next prime is 21460141. The reversal of 21460130 is 3106412.

It is a junction number, because it is equal to n+sod(n) for n = 21460099 and 21460108.

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, 12377 + ... + 14003.

It is an arithmetic number, because the mean of its divisors is an integer number (2417580).

Almost surely, 2^21460130 is an apocalyptic number.

21460130 is a deficient number, since it is larger than the sum of its proper divisors (17221150).

21460130 is a wasteful number, since it uses less digits than its factorization.

21460130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2953.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 21460130 is about 4632.5079600579. The cubic root of 21460130 is about 277.8928990681.

Adding to 21460130 its reverse (3106412), we get a palindrome (24566542).

The spelling of 21460130 in words is "twenty-one million, four hundred sixty thousand, one hundred thirty".