1240404324 has 24 divisors (see below), whose sum is σ = 2964870048. Its totient is φ = 403383360.

The previous prime is 1240404323. The next prime is 1240404343. The reversal of 1240404324 is 4234040421.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1240404294 and 1240404303.

It is not an unprimeable number, because it can be changed into a prime (1240404323) 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, 1260082 + ... + 1261065.

It is an arithmetic number, because the mean of its divisors is an integer number (123536252).

Almost surely, 2^1240404324 is an apocalyptic number.

It is an amenable number.

1240404324 is an abundant number, since it is smaller than the sum of its proper divisors (1724465724).

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

1240404324 is a wasteful number, since it uses less digits than its factorization.

1240404324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2521195 (or 2521193 counting only the distinct ones).

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

The square root of 1240404324 is about 35219.3742704211. The cubic root of 1240404324 is about 1074.4538271873.

Adding to 1240404324 its reverse (4234040421), we get a palindrome (5474444745).

The spelling of 1240404324 in words is "one billion, two hundred forty million, four hundred four thousand, three hundred twenty-four".