478289419 has 2 divisors, whose sum is σ = 478289420. Its totient is φ = 478289418.

The previous prime is 478289411. The next prime is 478289479. The reversal of 478289419 is 914982874.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 478289419 - 2³ = 478289411 is a prime.

It is a super-2 number, since 2×478289419² = 457521536654715122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (478289411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239144709 + 239144710.

It is an arithmetic number, because the mean of its divisors is an integer number (239144710).

Almost surely, 2^478289419 is an apocalyptic number.

478289419 is a deficient number, since it is larger than the sum of its proper divisors (1).

478289419 is an equidigital number, since it uses as much as digits as its factorization.

478289419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1161216, while the sum is 52.

The square root of 478289419 is about 21869.8289659522. The cubic root of 478289419 is about 782.0423242028.

The spelling of 478289419 in words is "four hundred seventy-eight million, two hundred eighty-nine thousand, four hundred nineteen".