233523240 has 64 divisors (see below), whose sum is σ = 701870400. Its totient is φ = 62157312.

The previous prime is 233523233. The next prime is 233523253. The reversal of 233523240 is 42325332.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 233523240.

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 15 ways as a sum of consecutive naturals, for example, 77604 + ... + 80556.

It is an arithmetic number, because the mean of its divisors is an integer number (10966725).

Almost surely, 2^233523240 is an apocalyptic number.

233523240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

233523240 is an abundant number, since it is smaller than the sum of its proper divisors (468347160).

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

233523240 is a wasteful number, since it uses less digits than its factorization.

233523240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3626 (or 3622 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 24.

The square root of 233523240 is about 15281.4672070453. The cubic root of 233523240 is about 615.8052245838.

Adding to 233523240 its reverse (42325332), we get a palindrome (275848572).

The spelling of 233523240 in words is "two hundred thirty-three million, five hundred twenty-three thousand, two hundred forty".