1330403425 has 24 divisors (see below), whose sum is σ = 1881113976. Its totient is φ = 924656640.

The previous prime is 1330403423. The next prime is 1330403441. The reversal of 1330403425 is 5243040331.

It can be written as a sum of positive squares in 12 ways, for example, as 519520849 + 810882576 = 22793^2 + 28476^2 .

It is not a de Polignac number, because 1330403425 - 2¹ = 1330403423 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1330403425.

It is not an unprimeable number, because it can be changed into a prime (1330403423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114874 + ... + 125923.

It is an arithmetic number, because the mean of its divisors is an integer number (78379749).

Almost surely, 2^1330403425 is an apocalyptic number.

It is an amenable number.

1330403425 is a deficient number, since it is larger than the sum of its proper divisors (550710551).

1330403425 is a wasteful number, since it uses less digits than its factorization.

1330403425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240837 (or 240832 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 1330403425 is about 36474.6956807045. The cubic root of 1330403425 is about 1099.8356297097.

Adding to 1330403425 its reverse (5243040331), we get a palindrome (6573443756).

The spelling of 1330403425 in words is "one billion, three hundred thirty million, four hundred three thousand, four hundred twenty-five".