1538446475 has 12 divisors (see below), whose sum is σ = 1952039496. Its totient is φ = 1202134080.

The previous prime is 1538446453. The next prime is 1538446477. The reversal of 1538446475 is 5746448351.

It is not a de Polignac number, because 1538446475 - 2¹⁰ = 1538445451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1538446477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 714482 + ... + 716631.

It is an arithmetic number, because the mean of its divisors is an integer number (162669958).

Almost surely, 2^1538446475 is an apocalyptic number.

1538446475 is a deficient number, since it is larger than the sum of its proper divisors (413593021).

1538446475 is a wasteful number, since it uses less digits than its factorization.

1538446475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1431166 (or 1431161 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 47.

The square root of 1538446475 is about 39223.0350049560. The cubic root of 1538446475 is about 1154.4119055279.

The spelling of 1538446475 in words is "one billion, five hundred thirty-eight million, four hundred forty-six thousand, four hundred seventy-five".