2403231 has 4 divisors (see below), whose sum is σ = 3204312. Its totient is φ = 1602152.

The previous prime is 2403229. The next prime is 2403263. The reversal of 2403231 is 1323042.

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

It is a cyclic number.

It is not a de Polignac number, because 2403231 - 2¹ = 2403229 is a prime.

It is a super-2 number, since 2×2403231² = 11551038478722, which contains 22 as substring.

It is a D-number.

2403231 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2403231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2403211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400536 + ... + 400541.

It is an arithmetic number, because the mean of its divisors is an integer number (801078).

2^2403231 is an apocalyptic number.

2403231 is a deficient number, since it is larger than the sum of its proper divisors (801081).

2403231 is an equidigital number, since it uses as much as digits as its factorization.

2403231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801080.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 2403231 is about 1550.2357885173. The cubic root of 2403231 is about 133.9466446822.

Adding to 2403231 its reverse (1323042), we get a palindrome (3726273).

The spelling of 2403231 in words is "two million, four hundred three thousand, two hundred thirty-one".