2427446221 has 4 divisors (see below), whose sum is σ = 2451480444. Its totient is φ = 2403412000.

The previous prime is 2427446209. The next prime is 2427446233. The reversal of 2427446221 is 1226447242.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2427446209) and next prime (2427446233).

It can be written as a sum of positive squares in 2 ways, for example, as 1595123721 + 832322500 = 39939^2 + 28850^2 .

It is a cyclic number.

It is not a de Polignac number, because 2427446221 - 2²⁵ = 2393891789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2427446521) 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, 12016960 + ... + 12017161.

It is an arithmetic number, because the mean of its divisors is an integer number (612870111).

Almost surely, 2^2427446221 is an apocalyptic number.

It is an amenable number.

2427446221 is a deficient number, since it is larger than the sum of its proper divisors (24034223).

2427446221 is a wasteful number, since it uses less digits than its factorization.

2427446221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24034222.

The product of its digits is 43008, while the sum is 34.

The square root of 2427446221 is about 49269.1203595112. The cubic root of 2427446221 is about 1343.9502910933.

The spelling of 2427446221 in words is "two billion, four hundred twenty-seven million, four hundred forty-six thousand, two hundred twenty-one".