213778482 has 8 divisors (see below), whose sum is σ = 427556976. Its totient is φ = 71259492.

The previous prime is 213778463. The next prime is 213778493. The reversal of 213778482 is 284877312.

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

213778482 is an admirable 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, 17814868 + ... + 17814879.

It is an arithmetic number, because the mean of its divisors is an integer number (53444622).

Almost surely, 2^213778482 is an apocalyptic number.

213778482 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213778482 is a wasteful number, since it uses less digits than its factorization.

213778482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35629752.

The product of its digits is 150528, while the sum is 42.

The square root of 213778482 is about 14621.1655486148. The cubic root of 213778482 is about 597.9359465030.

The spelling of 213778482 in words is "two hundred thirteen million, seven hundred seventy-eight thousand, four hundred eighty-two".