21058114 has 48 divisors (see below), whose sum is σ = 41061888. Its totient is φ = 7920000.

The previous prime is 21058111. The next prime is 21058123. The reversal of 21058114 is 41185012.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21058111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52314 + ... + 52714.

It is an arithmetic number, because the mean of its divisors is an integer number (855456).

Almost surely, 2^21058114 is an apocalyptic number.

21058114 is a deficient number, since it is larger than the sum of its proper divisors (20003774).

21058114 is a wasteful number, since it uses less digits than its factorization.

21058114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463 (or 452 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 21058114 is about 4588.9120715045. The cubic root of 21058114 is about 276.1466786684.

The spelling of 21058114 in words is "twenty-one million, fifty-eight thousand, one hundred fourteen".