290294005 has 8 divisors (see below), whose sum is σ = 349111224. Its totient is φ = 231729600.

The previous prime is 290294003. The next prime is 290294009. The reversal of 290294005 is 500492092.

It can be written as a sum of positive squares in 4 ways, for example, as 79869969 + 210424036 = 8937^2 + 14506^2 .

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

It is not a de Polignac number, because 290294005 - 2¹ = 290294003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290294003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60666 + ... + 65275.

It is an arithmetic number, because the mean of its divisors is an integer number (43638903).

Almost surely, 2^290294005 is an apocalyptic number.

It is an amenable number.

290294005 is a deficient number, since it is larger than the sum of its proper divisors (58817219).

290294005 is a wasteful number, since it uses less digits than its factorization.

290294005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126407.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 290294005 is about 17038.0164631920. The cubic root of 290294005 is about 662.1342031903.

The spelling of 290294005 in words is "two hundred ninety million, two hundred ninety-four thousand, five".