1395213668 has 12 divisors (see below), whose sum is σ = 2475071340. Its totient is φ = 688050432.

The previous prime is 1395213661. The next prime is 1395213671. The reversal of 1395213668 is 8663125931.

It can be written as a sum of positive squares in 2 ways, for example, as 383846464 + 1011367204 = 19592^2 + 31802^2 .

It is not an unprimeable number, because it can be changed into a prime (1395213661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2388773 + ... + 2389356.

It is an arithmetic number, because the mean of its divisors is an integer number (206255945).

Almost surely, 2^1395213668 is an apocalyptic number.

It is an amenable number.

1395213668 is a deficient number, since it is larger than the sum of its proper divisors (1079857672).

1395213668 is a wasteful number, since it uses less digits than its factorization.

1395213668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4778206 (or 4778204 counting only the distinct ones).

The product of its digits is 233280, while the sum is 44.

The square root of 1395213668 is about 37352.5590555721. The cubic root of 1395213668 is about 1117.4126253656.

The spelling of 1395213668 in words is "one billion, three hundred ninety-five million, two hundred thirteen thousand, six hundred sixty-eight".