240442533 has 16 divisors (see below), whose sum is σ = 359887360. Its totient is φ = 158640768.

The previous prime is 240442513. The next prime is 240442571. The reversal of 240442533 is 335244042.

240442533 is a `hidden beast` number, since 2 + 404 + 4 + 253 + 3 = 666.

It is not a de Polignac number, because 240442533 - 2¹⁸ = 240180389 is a prime.

It is a super-2 number, since 2×240442533² = 115625223350912178, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 240442497 and 240442506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240442513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43285 + ... + 48522.

It is an arithmetic number, because the mean of its divisors is an integer number (22492960).

Almost surely, 2^240442533 is an apocalyptic number.

It is an amenable number.

240442533 is a deficient number, since it is larger than the sum of its proper divisors (119444827).

240442533 is an equidigital number, since it uses as much as digits as its factorization.

240442533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91913 (or 91907 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 27.

The square root of 240442533 is about 15506.2094981333. The cubic root of 240442533 is about 621.8282258129.

Adding to 240442533 its reverse (335244042), we get a palindrome (575686575).

The spelling of 240442533 in words is "two hundred forty million, four hundred forty-two thousand, five hundred thirty-three".