224212404 has 48 divisors (see below), whose sum is σ = 567891968. Its totient is φ = 68439168.

The previous prime is 224212399. The next prime is 224212409. The reversal of 224212404 is 404212422.

It is an interprime number because it is at equal distance from previous prime (224212399) and next prime (224212409).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224212409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14154 + ... + 25470.

Almost surely, 2^224212404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 224212404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283945984).

224212404 is an abundant number, since it is smaller than the sum of its proper divisors (343679564).

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

224212404 is a wasteful number, since it uses less digits than its factorization.

224212404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11464 (or 11462 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 224212404 is about 14973.7237853515. The cubic root of 224212404 is about 607.5096931509.

Adding to 224212404 its reverse (404212422), we get a palindrome (628424826).

The spelling of 224212404 in words is "two hundred twenty-four million, two hundred twelve thousand, four hundred four".