1240005244 has 12 divisors (see below), whose sum is σ = 2174468464. Its totient is φ = 618728544.

The previous prime is 1240005241. The next prime is 1240005257. The reversal of 1240005244 is 4425000421.

It is a happy number.

It is a super-2 number, since 2×1240005244² = 3075226010294999072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240005241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316329 + ... + 320224.

Almost surely, 2^1240005244 is an apocalyptic number.

It is an amenable number.

1240005244 is a deficient number, since it is larger than the sum of its proper divisors (934463220).

1240005244 is a wasteful number, since it uses less digits than its factorization.

1240005244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637044 (or 637042 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 1240005244 is about 35213.7081830358. The cubic root of 1240005244 is about 1074.3385854555.

Adding to 1240005244 its reverse (4425000421), we get a palindrome (5665005665).

The spelling of 1240005244 in words is "one billion, two hundred forty million, five thousand, two hundred forty-four".