224423440 has 40 divisors (see below), whose sum is σ = 549250560. Its totient is φ = 85044096.

The previous prime is 224423417. The next prime is 224423471. The reversal of 224423440 is 44324422.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72304 + ... + 75343.

It is an arithmetic number, because the mean of its divisors is an integer number (13731264).

Almost surely, 2^224423440 is an apocalyptic number.

224423440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

224423440 is an abundant number, since it is smaller than the sum of its proper divisors (324827120).

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

224423440 is a wasteful number, since it uses less digits than its factorization.

224423440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147679 (or 147673 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 25.

The square root of 224423440 is about 14980.7690056285. The cubic root of 224423440 is about 607.7002360027.

Adding to 224423440 its reverse (44324422), we get a palindrome (268747862).

The spelling of 224423440 in words is "two hundred twenty-four million, four hundred twenty-three thousand, four hundred forty".