21141190 has 32 divisors (see below), whose sum is σ = 44052480. Its totient is φ = 7154784.

The previous prime is 21141161. The next prime is 21141227. The reversal of 21141190 is 9114112.

It is a super-2 number, since 2×21141190² = 893899829232200, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 3619 + ... + 7441.

It is an arithmetic number, because the mean of its divisors is an integer number (1376640).

Almost surely, 2^21141190 is an apocalyptic number.

21141190 is an abundant number, since it is smaller than the sum of its proper divisors (22911290).

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

21141190 is a wasteful number, since it uses less digits than its factorization.

21141190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3916.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 21141190 is about 4597.9549802059. The cubic root of 21141190 is about 276.5093426620.

The spelling of 21141190 in words is "twenty-one million, one hundred forty-one thousand, one hundred ninety".