248430478 has 4 divisors (see below), whose sum is σ = 372645720. Its totient is φ = 124215238.

The previous prime is 248430463. The next prime is 248430509. The reversal of 248430478 is 874034842.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 248430478.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62107618 + ... + 62107621.

It is an arithmetic number, because the mean of its divisors is an integer number (93161430).

Almost surely, 2^248430478 is an apocalyptic number.

248430478 is a deficient number, since it is larger than the sum of its proper divisors (124215242).

248430478 is a wasteful number, since it uses less digits than its factorization.

248430478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124215241.

The product of its (nonzero) digits is 172032, while the sum is 40.

The square root of 248430478 is about 15761.6775122447. The cubic root of 248430478 is about 628.6394405796.

The spelling of 248430478 in words is "two hundred forty-eight million, four hundred thirty thousand, four hundred seventy-eight".