21483190 has 16 divisors (see below), whose sum is σ = 38738160. Its totient is φ = 8578080.

The previous prime is 21483169. The next prime is 21483191. The reversal of 21483190 is 9138412.

It is a happy number.

It is a super-2 number, since 2×21483190² = 923054905152200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21483191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5356 + ... + 8464.

It is an arithmetic number, because the mean of its divisors is an integer number (2421135).

Almost surely, 2^21483190 is an apocalyptic number.

21483190 is a deficient number, since it is larger than the sum of its proper divisors (17254970).

21483190 is a wasteful number, since it uses less digits than its factorization.

21483190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3807.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 21483190 is about 4634.9962243782. The cubic root of 21483190 is about 277.9924001166.

The spelling of 21483190 in words is "twenty-one million, four hundred eighty-three thousand, one hundred ninety".