1040821206 has 16 divisors (see below), whose sum is σ = 2087543664. Its totient is φ = 345956864.

The previous prime is 1040821169. The next prime is 1040821219. The reversal of 1040821206 is 6021280401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243591 + ... + 247826.

It is an arithmetic number, because the mean of its divisors is an integer number (130471479).

Almost surely, 2^1040821206 is an apocalyptic number.

1040821206 is an abundant number, since it is smaller than the sum of its proper divisors (1046722458).

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

1040821206 is a wasteful number, since it uses less digits than its factorization.

1040821206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491775.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 1040821206 is about 32261.7607393025. The cubic root of 1040821206 is about 1013.4260043605.

The spelling of 1040821206 in words is "one billion, forty million, eight hundred twenty-one thousand, two hundred six".