1478685357 has 6 divisors (see below), whose sum is σ = 2135878862. Its totient is φ = 985790232.

The previous prime is 1478685293. The next prime is 1478685361. The reversal of 1478685357 is 7535868741.

It is a happy number.

1478685357 is a `hidden beast` number, since 1 + 47 + 8 + 68 + 535 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1231378281 + 247307076 = 35091^2 + 15726^2 .

It is not a de Polignac number, because 1478685357 - 2⁶ = 1478685293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1478683357) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 82149178 + ... + 82149195.

Almost surely, 2^1478685357 is an apocalyptic number.

It is an amenable number.

1478685357 is a deficient number, since it is larger than the sum of its proper divisors (657193505).

1478685357 is a wasteful number, since it uses less digits than its factorization.

1478685357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164298379 (or 164298376 counting only the distinct ones).

The product of its digits is 5644800, while the sum is 54.

The square root of 1478685357 is about 38453.6780685541. The cubic root of 1478685357 is about 1139.2663169283.

The spelling of 1478685357 in words is "one billion, four hundred seventy-eight million, six hundred eighty-five thousand, three hundred fifty-seven".