1478384521 has 8 divisors (see below), whose sum is σ = 1496735744. Its totient is φ = 1460138400.

The previous prime is 1478384461. The next prime is 1478384569. The reversal of 1478384521 is 1254838741.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1478384521 - 2¹¹ = 1478382473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1478384581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2221 + ... + 54421.

It is an arithmetic number, because the mean of its divisors is an integer number (187091968).

Almost surely, 2^1478384521 is an apocalyptic number.

It is an amenable number.

1478384521 is a deficient number, since it is larger than the sum of its proper divisors (18351223).

1478384521 is a wasteful number, since it uses less digits than its factorization.

1478384521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52551.

The product of its digits is 215040, while the sum is 43.

The square root of 1478384521 is about 38449.7662021500. The cubic root of 1478384521 is about 1139.1890510954.

The spelling of 1478384521 in words is "one billion, four hundred seventy-eight million, three hundred eighty-four thousand, five hundred twenty-one".