828051940 has 24 divisors (see below), whose sum is σ = 1745384760. Its totient is φ = 329987328.

The previous prime is 828051919. The next prime is 828051941. The reversal of 828051940 is 49150828.

It can be written as a sum of positive squares in 4 ways, for example, as 38217124 + 789834816 = 6182^2 + 28104^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 828051940.

It is not an unprimeable number, because it can be changed into a prime (828051941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71577 + ... + 82336.

It is an arithmetic number, because the mean of its divisors is an integer number (72724365).

Almost surely, 2^828051940 is an apocalyptic number.

It is an amenable number.

828051940 is an abundant number, since it is smaller than the sum of its proper divisors (917332820).

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

828051940 is a wasteful number, since it uses less digits than its factorization.

828051940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154191 (or 154189 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 828051940 is about 28775.8916456120. The cubic root of 828051940 is about 939.0438217192.

The spelling of 828051940 in words is "eight hundred twenty-eight million, fifty-one thousand, nine hundred forty".