840248828 has 6 divisors (see below), whose sum is σ = 1470435456. Its totient is φ = 420124412.

The previous prime is 840248821. The next prime is 840248833. The reversal of 840248828 is 828842048.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840248821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105031100 + ... + 105031107.

It is an arithmetic number, because the mean of its divisors is an integer number (245072576).

Almost surely, 2^840248828 is an apocalyptic number.

It is an amenable number.

840248828 is a deficient number, since it is larger than the sum of its proper divisors (630186628).

840248828 is a wasteful number, since it uses less digits than its factorization.

840248828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210062211 (or 210062209 counting only the distinct ones).

The product of its (nonzero) digits is 262144, while the sum is 44.

The square root of 840248828 is about 28987.0458653516. The cubic root of 840248828 is about 943.6319530843.

The spelling of 840248828 in words is "eight hundred forty million, two hundred forty-eight thousand, eight hundred twenty-eight".