1240144304 has 20 divisors (see below), whose sum is σ = 2746034064. Its totient is φ = 531490368.

The previous prime is 1240144289. The next prime is 1240144349. The reversal of 1240144304 is 4034410421.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1240144304.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5536247 + ... + 5536470.

Almost surely, 2^1240144304 is an apocalyptic number.

1240144304 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1240144304 is an abundant number, since it is smaller than the sum of its proper divisors (1505889760).

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

1240144304 is a wasteful number, since it uses less digits than its factorization.

1240144304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11072732 (or 11072726 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1240144304 is about 35215.6826428226. The cubic root of 1240144304 is about 1074.3787444092.

Adding to 1240144304 its reverse (4034410421), we get a palindrome (5274554725).

The spelling of 1240144304 in words is "one billion, two hundred forty million, one hundred forty-four thousand, three hundred four".