21130762 has 16 divisors (see below), whose sum is σ = 33989760. Its totient is φ = 9816768.

The previous prime is 21130741. The next prime is 21130783. The reversal of 21130762 is 26703112.

It is an interprime number because it is at equal distance from previous prime (21130741) and next prime (21130783).

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, 1248 + ... + 6619.

It is an arithmetic number, because the mean of its divisors is an integer number (2124360).

Almost surely, 2^21130762 is an apocalyptic number.

21130762 is a deficient number, since it is larger than the sum of its proper divisors (12858998).

21130762 is a wasteful number, since it uses less digits than its factorization.

21130762 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7965.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 21130762 is about 4596.8208579408. The cubic root of 21130762 is about 276.4638719696.

Adding to 21130762 its reverse (26703112), we get a palindrome (47833874).

The spelling of 21130762 in words is "twenty-one million, one hundred thirty thousand, seven hundred sixty-two".