21483846 has 16 divisors (see below), whose sum is σ = 47742000. Its totient is φ = 7161264.

The previous prime is 21483829. The next prime is 21483853. The reversal of 21483846 is 64838412.

It is a self number, because there is not a number n which added to its sum of digits gives 21483846.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198871 + ... + 198978.

It is an arithmetic number, because the mean of its divisors is an integer number (2983875).

Almost surely, 2^21483846 is an apocalyptic number.

21483846 is an abundant number, since it is smaller than the sum of its proper divisors (26258154).

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

21483846 is a wasteful number, since it uses less digits than its factorization.

21483846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397860 (or 397854 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 21483846 is about 4635.0669898072. The cubic root of 21483846 is about 277.9952296337.

It can be divided in two parts, 2 and 1483846, that multiplied together give a palindrome (2967692).

The spelling of 21483846 in words is "twenty-one million, four hundred eighty-three thousand, eight hundred forty-six".