1216480478 has 8 divisors (see below), whose sum is σ = 1828307160. Its totient is φ = 607044760.

The previous prime is 1216480451. The next prime is 1216480481. The reversal of 1216480478 is 8740846121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 596468 + ... + 598503.

It is an arithmetic number, because the mean of its divisors is an integer number (228538395).

Almost surely, 2^1216480478 is an apocalyptic number.

1216480478 is a deficient number, since it is larger than the sum of its proper divisors (611826682).

1216480478 is a wasteful number, since it uses less digits than its factorization.

1216480478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1195482.

The product of its (nonzero) digits is 86016, while the sum is 41.

The square root of 1216480478 is about 34878.0801937263. The cubic root of 1216480478 is about 1067.5012230258.

The spelling of 1216480478 in words is "one billion, two hundred sixteen million, four hundred eighty thousand, four hundred seventy-eight".