1052821264 has 20 divisors (see below), whose sum is σ = 2225281680. Its totient is φ = 478555040.

The previous prime is 1052821261. The next prime is 1052821277. The reversal of 1052821264 is 4621282501.

It is a super-2 number, since 2×1052821264² = 2216865227861115392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1052821261) 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 3 ways as a sum of consecutive naturals, for example, 2990794 + ... + 2991145.

It is an arithmetic number, because the mean of its divisors is an integer number (111264084).

Almost surely, 2^1052821264 is an apocalyptic number.

It is an amenable number.

1052821264 is an abundant number, since it is smaller than the sum of its proper divisors (1172460416).

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

1052821264 is a wasteful number, since it uses less digits than its factorization.

1052821264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5981958 (or 5981952 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 1052821264 is about 32447.2073374582. The cubic root of 1052821264 is about 1017.3058672949.

The spelling of 1052821264 in words is "one billion, fifty-two million, eight hundred twenty-one thousand, two hundred sixty-four".