21483741 has 8 divisors (see below), whose sum is σ = 28674880. Its totient is φ = 14307552.

The previous prime is 21483731. The next prime is 21483743. The reversal of 21483741 is 14738412.

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

It is not a de Polignac number, because 21483741 - 2¹⁰ = 21482717 is a prime.

It is a super-2 number, since 2×21483741² = 923102254710162, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21483699 and 21483708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21483743) 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, 216 + ... + 6558.

It is an arithmetic number, because the mean of its divisors is an integer number (3584360).

Almost surely, 2^21483741 is an apocalyptic number.

It is an amenable number.

21483741 is a deficient number, since it is larger than the sum of its proper divisors (7191139).

21483741 is a wasteful number, since it uses less digits than its factorization.

21483741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7475.

The product of its digits is 5376, while the sum is 30.

The square root of 21483741 is about 4635.0556630962. The cubic root of 21483741 is about 277.9947767423.

It can be divided in two parts, 21483 and 741, that multiplied together give a triangular number (15918903 = T₅₆₄₂).

The spelling of 21483741 in words is "twenty-one million, four hundred eighty-three thousand, seven hundred forty-one".