1240535 has 8 divisors (see below), whose sum is σ = 1500336. Its totient is φ = 984640.

The previous prime is 1240523. The next prime is 1240543. The reversal of 1240535 is 5350421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1240535 - 2¹² = 1236439 is a prime.

It is a Duffinian 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, 221 + ... + 1590.

It is an arithmetic number, because the mean of its divisors is an integer number (187542).

2^1240535 is an apocalyptic number.

1240535 is a deficient number, since it is larger than the sum of its proper divisors (259801).

1240535 is a wasteful number, since it uses less digits than its factorization.

1240535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1953.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 1240535 is about 1113.7930687520. The cubic root of 1240535 is about 107.4491556927.

Adding to 1240535 its reverse (5350421), we get a palindrome (6590956).

The spelling of 1240535 in words is "one million, two hundred forty thousand, five hundred thirty-five".