240470 has 16 divisors (see below), whose sum is σ = 438480. Its totient is φ = 94944.

The previous prime is 240437. The next prime is 240473. The reversal of 240470 is 74042.

240470 = 100² + 101² + ... + 119².

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240473) by changing a digit.

240470 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1304 + ... + 1476.

It is an arithmetic number, because the mean of its divisors is an integer number (27405).

2²⁴⁰⁴⁷⁰ is an apocalyptic number.

240470 is a deficient number, since it is larger than the sum of its proper divisors (198010).

240470 is a wasteful number, since it uses less digits than its factorization.

240470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319.

The product of its (nonzero) digits is 224, while the sum is 17.

The square root of 240470 is about 490.3774056785. The cubic root of 240470 is about 62.1851903135.

The spelling of 240470 in words is "two hundred forty thousand, four hundred seventy", and thus it is an iban number.