146404224 has 96 divisors (see below), whose sum is σ = 424373040. Its totient is φ = 48445440.

The previous prime is 146404213. The next prime is 146404259. The reversal of 146404224 is 422404641.

It is a happy number.

146404224 is a `hidden beast` number, since 14 + 640 + 4 + 2 + 2 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

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, 192004 + ... + 192764.

Almost surely, 2^146404224 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 146404224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212186520).

146404224 is an abundant number, since it is smaller than the sum of its proper divisors (277968816).

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

146404224 is a wasteful number, since it uses less digits than its factorization.

146404224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948 (or 933 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 146404224 is about 12099.7613199600. The cubic root of 146404224 is about 527.0492532463.

Adding to 146404224 its reverse (422404641), we get a palindrome (568808865).

The spelling of 146404224 in words is "one hundred forty-six million, four hundred four thousand, two hundred twenty-four".