2147020828 has 6 divisors (see below), whose sum is σ = 3757286456. Its totient is φ = 1073510412.

The previous prime is 2147020823. The next prime is 2147020871. The reversal of 2147020828 is 8280207412.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 2147020793 and 2147020802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2147020823) 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 as a sum of consecutive naturals, namely, 268377600 + ... + 268377607.

Almost surely, 2^2147020828 is an apocalyptic number.

It is an amenable number.

2147020828 is a deficient number, since it is larger than the sum of its proper divisors (1610265628).

2147020828 is a wasteful number, since it uses less digits than its factorization.

2147020828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536755211 (or 536755209 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 34.

The square root of 2147020828 is about 46335.9561032251. The cubic root of 2147020828 is about 1290.0664645362.

The spelling of 2147020828 in words is "two billion, one hundred forty-seven million, twenty thousand, eight hundred twenty-eight".