1240434424 has 16 divisors (see below), whose sum is σ = 2326665600. Its totient is φ = 619990272.

The previous prime is 1240434407. The next prime is 1240434431. The reversal of 1240434424 is 4244340421.

It is a junction number, because it is equal to n+sod(n) for n = 1240434392 and 1240434401.

It is a congruent number.

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, 3897 + ... + 49960.

It is an arithmetic number, because the mean of its divisors is an integer number (145416600).

Almost surely, 2^1240434424 is an apocalyptic number.

It is an amenable number.

1240434424 is a deficient number, since it is larger than the sum of its proper divisors (1086231176).

1240434424 is a wasteful number, since it uses less digits than its factorization.

1240434424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56742 (or 56738 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

The square root of 1240434424 is about 35219.8015894468. The cubic root of 1240434424 is about 1074.4625181166.

Adding to 1240434424 its reverse (4244340421), we get a palindrome (5484774845).

The spelling of 1240434424 in words is "one billion, two hundred forty million, four hundred thirty-four thousand, four hundred twenty-four".