1240244425 has 24 divisors (see below), whose sum is σ = 1775747456. Its totient is φ = 841674240.

The previous prime is 1240244417. The next prime is 1240244443. The reversal of 1240244425 is 5244420421.

It is not a de Polignac number, because 1240244425 - 2³ = 1240244417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1240244393 and 1240244402.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19557 + ... + 53506.

Almost surely, 2^1240244425 is an apocalyptic number.

It is an amenable number.

1240244425 is a deficient number, since it is larger than the sum of its proper divisors (535503031).

1240244425 is an equidigital number, since it uses as much as digits as its factorization.

1240244425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73177 (or 73172 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 28.

The square root of 1240244425 is about 35217.1041540897. The cubic root of 1240244425 is about 1074.4076563617.

Adding to 1240244425 its reverse (5244420421), we get a palindrome (6484664846).

The spelling of 1240244425 in words is "one billion, two hundred forty million, two hundred forty-four thousand, four hundred twenty-five".