1020236436 has 36 divisors (see below), whose sum is σ = 2730634452. Its totient is φ = 320073984.

The previous prime is 1020236429. The next prime is 1020236467. The reversal of 1020236436 is 6346320201.

1020236436 is a `hidden beast` number, since 10 + 2 + 0 + 2 + 3 + 643 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 299636100 + 720600336 = 17310^2 + 26844^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 832915 + ... + 834138.

It is an arithmetic number, because the mean of its divisors is an integer number (75850957).

Almost surely, 2^1020236436 is an apocalyptic number.

It is an amenable number.

1020236436 is an abundant number, since it is smaller than the sum of its proper divisors (1710398016).

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

1020236436 is a wasteful number, since it uses less digits than its factorization.

1020236436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1667080 (or 1667075 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 1020236436 is about 31941.1401800249. The cubic root of 1020236436 is about 1006.7004819326.

Adding to 1020236436 its reverse (6346320201), we get a palindrome (7366556637).

The spelling of 1020236436 in words is "one billion, twenty million, two hundred thirty-six thousand, four hundred thirty-six".