828401478 has 16 divisors (see below), whose sum is σ = 1659395376. Its totient is φ = 275701760.

The previous prime is 828401471. The next prime is 828401479. The reversal of 828401478 is 874104828.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (828401471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103851 + ... + 111542.

It is an arithmetic number, because the mean of its divisors is an integer number (103712211).

Almost surely, 2^828401478 is an apocalyptic number.

828401478 is an abundant number, since it is smaller than the sum of its proper divisors (830993898).

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

828401478 is a wasteful number, since it uses less digits than its factorization.

828401478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216039.

The product of its (nonzero) digits is 114688, while the sum is 42.

The square root of 828401478 is about 28781.9644569303. The cubic root of 828401478 is about 939.1759331283.

The spelling of 828401478 in words is "eight hundred twenty-eight million, four hundred one thousand, four hundred seventy-eight".