233423240 has 16 divisors (see below), whose sum is σ = 525202380. Its totient is φ = 93369280.

The previous prime is 233423207. The next prime is 233423257. The reversal of 233423240 is 42324332.

It can be written as a sum of positive squares in 2 ways, for example, as 233295076 + 128164 = 15274^2 + 358^2 .

It is an unprimeable number.

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, 2917751 + ... + 2917830.

Almost surely, 2^233423240 is an apocalyptic number.

233423240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

233423240 is an abundant number, since it is smaller than the sum of its proper divisors (291779140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

233423240 is a wasteful number, since it uses less digits than its factorization.

233423240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5835592 (or 5835588 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 23.

The square root of 233423240 is about 15278.1949195577. The cubic root of 233423240 is about 615.7173113999.

Adding to 233423240 its reverse (42324332), we get a palindrome (275747572).

The spelling of 233423240 in words is "two hundred thirty-three million, four hundred twenty-three thousand, two hundred forty".