290769361 has 8 divisors (see below), whose sum is σ = 292804200. Its totient is φ = 288740352.

The previous prime is 290769313. The next prime is 290769379. The reversal of 290769361 is 163967092.

It can be written as a sum of positive squares in 4 ways, for example, as 7049025 + 283720336 = 2655^2 + 16844^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 290769361 - 2¹¹ = 290767313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (290769301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148215 + ... + 150163.

It is an arithmetic number, because the mean of its divisors is an integer number (36600525).

Almost surely, 2^290769361 is an apocalyptic number.

It is an amenable number.

290769361 is a deficient number, since it is larger than the sum of its proper divisors (2034839).

290769361 is a wasteful number, since it uses less digits than its factorization.

290769361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2915.

The product of its (nonzero) digits is 122472, while the sum is 43.

The square root of 290769361 is about 17051.9606204096. The cubic root of 290769361 is about 662.4954206875.

The spelling of 290769361 in words is "two hundred ninety million, seven hundred sixty-nine thousand, three hundred sixty-one".