290294423 has 2 divisors, whose sum is σ = 290294424. Its totient is φ = 290294422.

The previous prime is 290294383. The next prime is 290294449. The reversal of 290294423 is 324492092.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 290294423 - 2²⁴ = 273517207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (290294723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145147211 + 145147212.

It is an arithmetic number, because the mean of its divisors is an integer number (145147212).

Almost surely, 2^290294423 is an apocalyptic number.

290294423 is a deficient number, since it is larger than the sum of its proper divisors (1).

290294423 is an equidigital number, since it uses as much as digits as its factorization.

290294423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 290294423 is about 17038.0287298737. The cubic root of 290294423 is about 662.1345209968.

The spelling of 290294423 in words is "two hundred ninety million, two hundred ninety-four thousand, four hundred twenty-three".