224120340 has 36 divisors (see below), whose sum is σ = 679832244. Its totient is φ = 59765376.

The previous prime is 224120311. The next prime is 224120353. The reversal of 224120340 is 43021422.

It can be written as a sum of positive squares in 2 ways, for example, as 99440784 + 124679556 = 9972^2 + 11166^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 622377 + ... + 622736.

It is an arithmetic number, because the mean of its divisors is an integer number (18884229).

Almost surely, 2^224120340 is an apocalyptic number.

224120340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

224120340 is an abundant number, since it is smaller than the sum of its proper divisors (455711904).

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

224120340 is a wasteful number, since it uses less digits than its factorization.

224120340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1245128 (or 1245123 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 224120340 is about 14970.6492845167. The cubic root of 224120340 is about 607.4265317851.

Adding to 224120340 its reverse (43021422), we get a palindrome (267141762).

The spelling of 224120340 in words is "two hundred twenty-four million, one hundred twenty thousand, three hundred forty".