920208049 has 4 divisors (see below), whose sum is σ = 921418020. Its totient is φ = 918998080.

The previous prime is 920208031. The next prime is 920208097. The reversal of 920208049 is 940802029.

920208049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 281736225 + 638471824 = 16785^2 + 25268^2 .

It is a cyclic number.

It is not a de Polignac number, because 920208049 - 2¹³ = 920199857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (920208349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 603844 + ... + 605365.

It is an arithmetic number, because the mean of its divisors is an integer number (230354505).

Almost surely, 2^920208049 is an apocalyptic number.

It is an amenable number.

920208049 is a deficient number, since it is larger than the sum of its proper divisors (1209971).

920208049 is a wasteful number, since it uses less digits than its factorization.

920208049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1209970.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 920208049 is about 30334.9311685390. The cubic root of 920208049 is about 972.6621345093.

The spelling of 920208049 in words is "nine hundred twenty million, two hundred eight thousand, forty-nine".