290970423 has 12 divisors (see below), whose sum is σ = 420679480. Its totient is φ = 193800816.

The previous prime is 290970397. The next prime is 290970439. The reversal of 290970423 is 324079092.

It is not a de Polignac number, because 290970423 - 2²⁰ = 289921847 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 (290970443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4288 + ... + 24501.

Almost surely, 2^290970423 is an apocalyptic number.

290970423 is a deficient number, since it is larger than the sum of its proper divisors (129709057).

290970423 is a wasteful number, since it uses less digits than its factorization.

With its successor (290970424) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (29915).

With its successor (290970424) it forms an eRAP, since the sums of their prime factors are consecutive (29918 and 29919).

290970423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29918 (or 29915 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 290970423 is about 17057.8551699796. The cubic root of 290970423 is about 662.6480868913.

The spelling of 290970423 in words is "two hundred ninety million, nine hundred seventy thousand, four hundred twenty-three".