1240421325 has 48 divisors (see below), whose sum is σ = 2409387456. Its totient is φ = 555148800.

The previous prime is 1240421309. The next prime is 1240421341. The reversal of 1240421325 is 5231240421.

It is an interprime number because it is at equal distance from previous prime (1240421309) and next prime (1240421341).

It is not a de Polignac number, because 1240421325 - 2⁴ = 1240421309 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1240421295 and 1240421304.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 47104 + ... + 68553.

It is an arithmetic number, because the mean of its divisors is an integer number (50195572).

Almost surely, 2^1240421325 is an apocalyptic number.

1240421325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1240421325 is a deficient number, since it is larger than the sum of its proper divisors (1168966131).

1240421325 is a wasteful number, since it uses less digits than its factorization.

1240421325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115694 (or 115689 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 1240421325 is about 35219.6156282263. The cubic root of 1240421325 is about 1074.4587359916.

Adding to 1240421325 its reverse (5231240421), we get a palindrome (6471661746).

The spelling of 1240421325 in words is "one billion, two hundred forty million, four hundred twenty-one thousand, three hundred twenty-five".