21413022 has 8 divisors (see below), whose sum is σ = 42826056. Its totient is φ = 7137672.

The previous prime is 21413009. The next prime is 21413027. The reversal of 21413022 is 22031412.

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

21413022 is an admirable number.

It is a super-2 number, since 2×21413022² = 917035022344968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21412992 and 21413010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21413027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1784413 + ... + 1784424.

It is an arithmetic number, because the mean of its divisors is an integer number (5353257).

Almost surely, 2^21413022 is an apocalyptic number.

21413022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21413022 is a wasteful number, since it uses less digits than its factorization.

21413022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3568842.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 21413022 is about 4627.4206638256. The cubic root of 21413022 is about 277.6894121176.

Adding to 21413022 its reverse (22031412), we get a palindrome (43444434).

The spelling of 21413022 in words is "twenty-one million, four hundred thirteen thousand, twenty-two".