240487 has 6 divisors (see below), whose sum is σ = 260592. Its totient is φ = 221832.

The previous prime is 240479. The next prime is 240491. The reversal of 240487 is 784042.

It is not a de Polignac number, because 240487 - 2³ = 240479 is a prime.

It is an Ulam number.

It is a Duffinian number.

240487 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240437) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 543 + ... + 880.

It is an arithmetic number, because the mean of its divisors is an integer number (43432).

2²⁴⁰⁴⁸⁷ is an apocalyptic number.

240487 is a deficient number, since it is larger than the sum of its proper divisors (20105).

240487 is a wasteful number, since it uses less digits than its factorization.

240487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1449 (or 1436 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 240487 is about 490.3947389604. The cubic root of 240487 is about 62.1866556706.

It can be divided in two parts, 240 and 487, that added together give a palindrome (727).

The spelling of 240487 in words is "two hundred forty thousand, four hundred eighty-seven".