290424423 has 4 divisors (see below), whose sum is σ = 387232568. Its totient is φ = 193616280.

The previous prime is 290424419. The next prime is 290424439. The reversal of 290424423 is 324424092.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 290424423 - 2² = 290424419 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 (290424493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48404068 + ... + 48404073.

It is an arithmetic number, because the mean of its divisors is an integer number (96808142).

Almost surely, 2^290424423 is an apocalyptic number.

290424423 is a deficient number, since it is larger than the sum of its proper divisors (96808145).

290424423 is an equidigital number, since it uses as much as digits as its factorization.

290424423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96808144.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 290424423 is about 17041.8432981881. The cubic root of 290424423 is about 662.2333455406.

The spelling of 290424423 in words is "two hundred ninety million, four hundred twenty-four thousand, four hundred twenty-three".