919320828 has 48 divisors (see below), whose sum is σ = 2215606176. Its totient is φ = 296524800.

The previous prime is 919320823. The next prime is 919320859. The reversal of 919320828 is 828023919.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 919320828.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (919320821) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 36528 + ... + 56328.

It is an arithmetic number, because the mean of its divisors is an integer number (46158462).

Almost surely, 2^919320828 is an apocalyptic number.

It is an amenable number.

919320828 is an abundant number, since it is smaller than the sum of its proper divisors (1296285348).

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

919320828 is a wasteful number, since it uses less digits than its factorization.

919320828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19934 (or 19932 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 919320828 is about 30320.3038902977. The cubic root of 919320828 is about 972.3494357434.

The spelling of 919320828 in words is "nine hundred nineteen million, three hundred twenty thousand, eight hundred twenty-eight".