424238261 has 4 divisors (see below), whose sum is σ = 431428800. Its totient is φ = 417047724.

The previous prime is 424238237. The next prime is 424238291. The reversal of 424238261 is 162832424.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 424238261 - 2²² = 420043957 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 (424238291) 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, 3595181 + ... + 3595298.

It is an arithmetic number, because the mean of its divisors is an integer number (107857200).

Almost surely, 2^424238261 is an apocalyptic number.

It is an amenable number.

424238261 is a deficient number, since it is larger than the sum of its proper divisors (7190539).

424238261 is an equidigital number, since it uses as much as digits as its factorization.

424238261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7190538.

The product of its digits is 18432, while the sum is 32.

The square root of 424238261 is about 20597.0449579545. The cubic root of 424238261 is about 751.3978440537.

The spelling of 424238261 in words is "four hundred twenty-four million, two hundred thirty-eight thousand, two hundred sixty-one".