240540471 has 12 divisors (see below), whose sum is σ = 359428680. Its totient is φ = 154830480.

The previous prime is 240540467. The next prime is 240540479. The reversal of 240540471 is 174045042.

240540471 = 2084² + 2085² + ... + 2137².

It is not a de Polignac number, because 240540471 - 2² = 240540467 is a prime.

It is a super-3 number, since 3×240540471³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240540479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 460545 + ... + 461066.

It is an arithmetic number, because the mean of its divisors is an integer number (29952390).

Almost surely, 2^240540471 is an apocalyptic number.

240540471 is a deficient number, since it is larger than the sum of its proper divisors (118888209).

240540471 is a wasteful number, since it uses less digits than its factorization.

240540471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921646 (or 921643 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 240540471 is about 15509.3672017913. The cubic root of 240540471 is about 621.9126428600.

The spelling of 240540471 in words is "two hundred forty million, five hundred forty thousand, four hundred seventy-one".