1328037625 has 16 divisors (see below), whose sum is σ = 1660353552. Its totient is φ = 1060531200.

The previous prime is 1328037583. The next prime is 1328037653. The reversal of 1328037625 is 5267308231.

It can be written as a sum of positive squares in 8 ways, for example, as 181063936 + 1146973689 = 13456^2 + 33867^2 .

It is not a de Polignac number, because 1328037625 - 2⁷ = 1328037497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62919 + ... + 81331.

It is an arithmetic number, because the mean of its divisors is an integer number (103772097).

Almost surely, 2^1328037625 is an apocalyptic number.

It is an amenable number.

1328037625 is a deficient number, since it is larger than the sum of its proper divisors (332315927).

1328037625 is an equidigital number, since it uses as much as digits as its factorization.

1328037625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19005 (or 18995 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 1328037625 is about 36442.2505479560. The cubic root of 1328037625 is about 1099.1833125388.

It can be divided in two parts, 13280 and 37625, that added together give a palindrome (50905).

The spelling of 1328037625 in words is "one billion, three hundred twenty-eight million, thirty-seven thousand, six hundred twenty-five".