4231905 has 8 divisors (see below), whose sum is σ = 6771072. Its totient is φ = 2257008.

The previous prime is 4231901. The next prime is 4231919. The reversal of 4231905 is 5091324.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4231905 - 2² = 4231901 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4231901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141049 + ... + 141078.

It is an arithmetic number, because the mean of its divisors is an integer number (846384).

Almost surely, 2^4231905 is an apocalyptic number.

It is an amenable number.

4231905 is a deficient number, since it is larger than the sum of its proper divisors (2539167).

4231905 is a wasteful number, since it uses less digits than its factorization.

4231905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282135.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 4231905 is about 2057.1594493378. The cubic root of 4231905 is about 161.7503776387.

It can be divided in two parts, 423 and 1905, that multiplied together give a triangular number (805815 = T₁₂₆₉).

The spelling of 4231905 in words is "four million, two hundred thirty-one thousand, nine hundred five".