240212534 has 16 divisors (see below), whose sum is σ = 369995472. Its totient is φ = 116900448.

The previous prime is 240212519. The next prime is 240212543. The reversal of 240212534 is 435212042.

It is a happy number.

240212534 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×240212534² = 115404122981402312, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20432 + ... + 29964.

It is an arithmetic number, because the mean of its divisors is an integer number (23124717).

Almost surely, 2^240212534 is an apocalyptic number.

240212534 is a deficient number, since it is larger than the sum of its proper divisors (129782938).

240212534 is a wasteful number, since it uses less digits than its factorization.

240212534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9871.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 240212534 is about 15498.7913722329. The cubic root of 240212534 is about 621.6298894437.

Adding to 240212534 its reverse (435212042), we get a palindrome (675424576).

The spelling of 240212534 in words is "two hundred forty million, two hundred twelve thousand, five hundred thirty-four".