1325400730 has 16 divisors (see below), whose sum is σ = 2406835944. Its totient is φ = 525468160.

The previous prime is 1325400709. The next prime is 1325400757. The reversal of 1325400730 is 370045231.

It can be written as a sum of positive squares in 4 ways, for example, as 594725769 + 730674961 = 24387^2 + 27031^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1325400695 and 1325400704.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 585331 + ... + 587590.

Almost surely, 2^1325400730 is an apocalyptic number.

1325400730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1325400730 is a deficient number, since it is larger than the sum of its proper divisors (1081435214).

1325400730 is a wasteful number, since it uses less digits than its factorization.

1325400730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173041.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 1325400730 is about 36406.0534801563. The cubic root of 1325400730 is about 1098.4553333062.

Adding to 1325400730 its reverse (370045231), we get a palindrome (1695445961).

The spelling of 1325400730 in words is "one billion, three hundred twenty-five million, four hundred thousand, seven hundred thirty".