224121450 has 48 divisors (see below), whose sum is σ = 635227200. Its totient is φ = 51227520.

The previous prime is 224121439. The next prime is 224121509. The reversal of 224121450 is 54121422.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105675 + ... + 107774.

It is an arithmetic number, because the mean of its divisors is an integer number (13233900).

Almost surely, 2^224121450 is an apocalyptic number.

224121450 is an abundant number, since it is smaller than the sum of its proper divisors (411105750).

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

224121450 is a wasteful number, since it uses less digits than its factorization.

224121450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213471 (or 213466 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 224121450 is about 14970.6863570112. The cubic root of 224121450 is about 607.4275345831.

Adding to 224121450 its reverse (54121422), we get a palindrome (278242872).

The spelling of 224121450 in words is "two hundred twenty-four million, one hundred twenty-one thousand, four hundred fifty".