21341052 has 36 divisors (see below), whose sum is σ = 57120336. Its totient is φ = 6695040.

The previous prime is 21341017. The next prime is 21341053. The reversal of 21341052 is 25014312.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21341053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16824 + ... + 18047.

It is an arithmetic number, because the mean of its divisors is an integer number (1586676).

Almost surely, 2^21341052 is an apocalyptic number.

It is an amenable number.

21341052 is an abundant number, since it is smaller than the sum of its proper divisors (35779284).

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

21341052 is a wasteful number, since it uses less digits than its factorization.

21341052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34898 (or 34893 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 21341052 is about 4619.6376481278. The cubic root of 21341052 is about 277.3779546105.

Adding to 21341052 its reverse (25014312), we get a palindrome (46355364).

The spelling of 21341052 in words is "twenty-one million, three hundred forty-one thousand, fifty-two".