1325378408 has 8 divisors (see below), whose sum is σ = 2485084530. Its totient is φ = 662689200.

The previous prime is 1325378399. The next prime is 1325378413. The reversal of 1325378408 is 8048735231.

It can be written as a sum of positive squares in only one way, i.e., 1159947364 + 165431044 = 34058^2 + 12862^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1325378408² = 3513255848785228928, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82836143 + ... + 82836158.

Almost surely, 2^1325378408 is an apocalyptic number.

It is an amenable number.

1325378408 is a deficient number, since it is larger than the sum of its proper divisors (1159706122).

1325378408 is a wasteful number, since it uses less digits than its factorization.

1325378408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165672307 (or 165672303 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 1325378408 is about 36405.7469089703. The cubic root of 1325378408 is about 1098.4491666536.

The spelling of 1325378408 in words is "one billion, three hundred twenty-five million, three hundred seventy-eight thousand, four hundred eight".