21130414 has 8 divisors (see below), whose sum is σ = 31727808. Its totient is φ = 10554480.

The previous prime is 21130409. The next prime is 21130423. The reversal of 21130414 is 41403112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×21130414² = 892988791622792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2622 + ... + 7009.

It is an arithmetic number, because the mean of its divisors is an integer number (3965976).

Almost surely, 2^21130414 is an apocalyptic number.

21130414 is a deficient number, since it is larger than the sum of its proper divisors (10597394).

21130414 is a wasteful number, since it uses less digits than its factorization.

21130414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10730.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 21130414 is about 4596.7830055377. The cubic root of 21130414 is about 276.4623542777.

Adding to 21130414 its reverse (41403112), we get a palindrome (62533526).

It can be divided in two parts, 211 and 30414, that added together give a square (30625 = 175²).

The spelling of 21130414 in words is "twenty-one million, one hundred thirty thousand, four hundred fourteen".