1244324040 has 64 divisors (see below), whose sum is σ = 3769968960. Its totient is φ = 328531200.

The previous prime is 1244324033. The next prime is 1244324071. The reversal of 1244324040 is 404234421.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1244324040.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39214 + ... + 63453.

It is an arithmetic number, because the mean of its divisors is an integer number (58905765).

Almost surely, 2^1244324040 is an apocalyptic number.

1244324040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1244324040 is an abundant number, since it is smaller than the sum of its proper divisors (2525644920).

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

1244324040 is a wasteful number, since it uses less digits than its factorization.

1244324040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102782 (or 102778 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 1244324040 is about 35274.9775336569. The cubic root of 1244324040 is about 1075.5844062345.

Adding to 1244324040 its reverse (404234421), we get a palindrome (1648558461).

The spelling of 1244324040 in words is "one billion, two hundred forty-four million, three hundred twenty-four thousand, forty".