1478219904 has 384 divisors, whose sum is σ = 5292967680. Its totient is φ = 386334720.

The previous prime is 1478219789. The next prime is 1478219917. The reversal of 1478219904 is 4099128741.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (384).

It is a self number, because there is not a number n which added to its sum of digits gives 1478219904.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5620477 + ... + 5620739.

It is an arithmetic number, because the mean of its divisors is an integer number (13783770).

Almost surely, 2^1478219904 is an apocalyptic number.

1478219904 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1478219904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2646483840).

1478219904 is an abundant number, since it is smaller than the sum of its proper divisors (3814747776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1478219904 is a wasteful number, since it uses less digits than its factorization.

1478219904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348 (or 333 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 1478219904 is about 38447.6254663406. The cubic root of 1478219904 is about 1139.1467669124.

The spelling of 1478219904 in words is "one billion, four hundred seventy-eight million, two hundred nineteen thousand, nine hundred four".