1224352240 has 40 divisors (see below), whose sum is σ = 3014070480. Its totient is φ = 460932096.

The previous prime is 1224352231. The next prime is 1224352249. The reversal of 1224352240 is 422534221.

It is an interprime number because it is at equal distance from previous prime (1224352231) and next prime (1224352249).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224352249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 448770 + ... + 451489.

It is an arithmetic number, because the mean of its divisors is an integer number (75351762).

Almost surely, 2^1224352240 is an apocalyptic number.

1224352240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1224352240 is an abundant number, since it is smaller than the sum of its proper divisors (1789718240).

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

1224352240 is a wasteful number, since it uses less digits than its factorization.

1224352240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900289 (or 900283 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 1224352240 is about 34990.7450620875. The cubic root of 1224352240 is about 1069.7988500094.

Adding to 1224352240 its reverse (422534221), we get a palindrome (1646886461).

The spelling of 1224352240 in words is "one billion, two hundred twenty-four million, three hundred fifty-two thousand, two hundred forty".