1478828493 has 36 divisors (see below), whose sum is σ = 2241587712. Its totient is φ = 939399120.

The previous prime is 1478828473. The next prime is 1478828509. The reversal of 1478828493 is 3948288741.

It is a happy number.

1478828493 is a `hidden beast` number, since 1 + 4 + 78 + 82 + 8 + 493 = 666.

It is not a de Polignac number, because 1478828493 - 2⁹ = 1478827981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1478828423) 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 35 ways as a sum of consecutive naturals, for example, 1823058 + ... + 1823868.

Almost surely, 2^1478828493 is an apocalyptic number.

It is an amenable number.

1478828493 is a deficient number, since it is larger than the sum of its proper divisors (762759219).

1478828493 is a wasteful number, since it uses less digits than its factorization.

1478828493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246 (or 1220 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 54.

The square root of 1478828493 is about 38455.5391718800. The cubic root of 1478828493 is about 1139.3030758781.

The spelling of 1478828493 in words is "one billion, four hundred seventy-eight million, eight hundred twenty-eight thousand, four hundred ninety-three".