233241640 has 16 divisors (see below), whose sum is σ = 524793780. Its totient is φ = 93296640.

The previous prime is 233241629. The next prime is 233241647. The reversal of 233241640 is 46142332.

It can be written as a sum of positive squares in 2 ways, for example, as 224820036 + 8421604 = 14994^2 + 2902^2 .

It is not an unprimeable number, because it can be changed into a prime (233241647) 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, 2915481 + ... + 2915560.

Almost surely, 2^233241640 is an apocalyptic number.

233241640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

233241640 is an abundant number, since it is smaller than the sum of its proper divisors (291552140).

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

233241640 is a wasteful number, since it uses less digits than its factorization.

233241640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5831052 (or 5831048 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 233241640 is about 15272.2506527362. The cubic root of 233241640 is about 615.5575968360.

Adding to 233241640 its reverse (46142332), we get a palindrome (279383972).

It can be divided in two parts, 23324 and 1640, that added together give a square (24964 = 158²).

The spelling of 233241640 in words is "two hundred thirty-three million, two hundred forty-one thousand, six hundred forty".