290293469 has 2 divisors, whose sum is σ = 290293470. Its totient is φ = 290293468.

The previous prime is 290293427. The next prime is 290293477. The reversal of 290293469 is 964392092.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 290293444 + 25 = 17038^2 + 5^2 .

It is a cyclic number.

It is not a de Polignac number, because 290293469 - 2¹⁶ = 290227933 is a prime.

It is a super-2 number, since 2×290293469² = 168540596288107922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (290293769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145146734 + 145146735.

It is an arithmetic number, because the mean of its divisors is an integer number (145146735).

Almost surely, 2^290293469 is an apocalyptic number.

It is an amenable number.

290293469 is a deficient number, since it is larger than the sum of its proper divisors (1).

290293469 is an equidigital number, since it uses as much as digits as its factorization.

290293469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 209952, while the sum is 44.

The square root of 290293469 is about 17038.0007336542. Note that the first 3 decimals coincide. The cubic root of 290293469 is about 662.1337956676.

The spelling of 290293469 in words is "two hundred ninety million, two hundred ninety-three thousand, four hundred sixty-nine".