1036921806 has 48 divisors (see below), whose sum is σ = 2290114944. Its totient is φ = 339021072.

The previous prime is 1036921801. The next prime is 1036921819. The reversal of 1036921806 is 6081296301.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1036921801) 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 in 23 ways as a sum of consecutive naturals, for example, 195765 + ... + 200991.

It is an arithmetic number, because the mean of its divisors is an integer number (47710728).

Almost surely, 2^1036921806 is an apocalyptic number.

1036921806 is an abundant number, since it is smaller than the sum of its proper divisors (1253193138).

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

1036921806 is a wasteful number, since it uses less digits than its factorization.

1036921806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5445 (or 5442 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 1036921806 is about 32201.2702544480. The cubic root of 1036921806 is about 1012.1588322881.

The spelling of 1036921806 in words is "one billion, thirty-six million, nine hundred twenty-one thousand, eight hundred six".