728214378 has 8 divisors (see below), whose sum is σ = 1456428768. Its totient is φ = 242738124.

The previous prime is 728214371. The next prime is 728214391. The reversal of 728214378 is 873412827.

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

728214378 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (728214371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60684526 + ... + 60684537.

It is an arithmetic number, because the mean of its divisors is an integer number (182053596).

Almost surely, 2^728214378 is an apocalyptic number.

728214378 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.

728214378 is a wasteful number, since it uses less digits than its factorization.

728214378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121369068.

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

The square root of 728214378 is about 26985.4475226927. The cubic root of 728214378 is about 899.6765825584.

The spelling of 728214378 in words is "seven hundred twenty-eight million, two hundred fourteen thousand, three hundred seventy-eight".