1240434125 has 16 divisors (see below), whose sum is σ = 1769214720. Its totient is φ = 850582800.

The previous prime is 1240434079. The next prime is 1240434127. The reversal of 1240434125 is 5214340421.

It is not a de Polignac number, because 1240434125 - 2⁸ = 1240433869 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1240434094 and 1240434103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240434127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 707945 + ... + 709694.

It is an arithmetic number, because the mean of its divisors is an integer number (110575920).

Almost surely, 2^1240434125 is an apocalyptic number.

It is an amenable number.

1240434125 is a deficient number, since it is larger than the sum of its proper divisors (528780595).

1240434125 is an equidigital number, since it uses as much as digits as its factorization.

1240434125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1417661 (or 1417651 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 1240434125 is about 35219.7973446753. The cubic root of 1240434125 is about 1074.4624317855.

Adding to 1240434125 its reverse (5214340421), we get a palindrome (6454774546).

The spelling of 1240434125 in words is "one billion, two hundred forty million, four hundred thirty-four thousand, one hundred twenty-five".