478196258 has 4 divisors (see below), whose sum is σ = 717294390. Its totient is φ = 239098128.

The previous prime is 478196233. The next prime is 478196267. The reversal of 478196258 is 852691874.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 852691874 = 2 ⋅426345937.

It can be written as a sum of positive squares in only one way, i.e., 475109209 + 3087049 = 21797^2 + 1757^2 .

It is a super-2 number, since 2×478196258² = 457343322330405128, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119549063 + ... + 119549066.

Almost surely, 2^478196258 is an apocalyptic number.

478196258 is a deficient number, since it is larger than the sum of its proper divisors (239098132).

478196258 is a wasteful number, since it uses less digits than its factorization.

478196258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239098131.

The product of its digits is 967680, while the sum is 50.

The square root of 478196258 is about 21867.6989644544. The cubic root of 478196258 is about 781.9915456206.

The spelling of 478196258 in words is "four hundred seventy-eight million, one hundred ninety-six thousand, two hundred fifty-eight".