1478420408 has 8 divisors (see below), whose sum is σ = 2772038280. Its totient is φ = 739210200.

The previous prime is 1478420399. The next prime is 1478420417. The reversal of 1478420408 is 8040248741.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1478420399) and next prime (1478420417).

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 92401268 + ... + 92401283.

It is an arithmetic number, because the mean of its divisors is an integer number (346504785).

Almost surely, 2^1478420408 is an apocalyptic number.

It is an amenable number.

1478420408 is a deficient number, since it is larger than the sum of its proper divisors (1293617872).

1478420408 is a wasteful number, since it uses less digits than its factorization.

1478420408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184802557 (or 184802553 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 38.

The square root of 1478420408 is about 38450.2328731570. The cubic root of 1478420408 is about 1139.1982687575.

The spelling of 1478420408 in words is "one billion, four hundred seventy-eight million, four hundred twenty thousand, four hundred eight".