1240534 has 8 divisors (see below), whose sum is σ = 1892520. Its totient is φ = 609696.

The previous prime is 1240523. The next prime is 1240543. The reversal of 1240534 is 4350421.

1240534 = 115² + 116² + ... + 173².

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5139 + ... + 5374.

It is an arithmetic number, because the mean of its divisors is an integer number (236565).

2^1240534 is an apocalyptic number.

1240534 is a deficient number, since it is larger than the sum of its proper divisors (651986).

1240534 is a wasteful number, since it uses less digits than its factorization.

1240534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10574.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 1240534 is about 1113.7926198355. The cubic root of 1240534 is about 107.4491268210.

Adding to 1240534 its reverse (4350421), we get a palindrome (5590955).

The spelling of 1240534 in words is "one million, two hundred forty thousand, five hundred thirty-four".