1020388936 has 24 divisors (see below), whose sum is σ = 2225594070. Its totient is φ = 437309376.

The previous prime is 1020388933. The next prime is 1020388949. The reversal of 1020388936 is 6398830201.

1020388936 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 552532036 + 467856900 = 23506^2 + 21630^2 .

It is a super-2 number, since 2×1020388936² = 2082387161422424192, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1020388933) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1301125 + ... + 1301908.

Almost surely, 2^1020388936 is an apocalyptic number.

It is an amenable number.

1020388936 is an abundant number, since it is smaller than the sum of its proper divisors (1205205134).

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

1020388936 is a wasteful number, since it uses less digits than its factorization.

1020388936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2603053 (or 2603042 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 1020388936 is about 31943.5272942736. The cubic root of 1020388936 is about 1006.7506383373.

The spelling of 1020388936 in words is "one billion, twenty million, three hundred eighty-eight thousand, nine hundred thirty-six".