1240463 has 4 divisors (see below), whose sum is σ = 1417680. Its totient is φ = 1063248.

The previous prime is 1240423. The next prime is 1240483. The reversal of 1240463 is 3640421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3640421 = 839 ⋅4339.

It is a cyclic number.

It is not a de Polignac number, because 1240463 - 2⁶ = 1240399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240423) by changing a digit.

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, 88598 + ... + 88611.

It is an arithmetic number, because the mean of its divisors is an integer number (354420).

2^1240463 is an apocalyptic number.

1240463 is a deficient number, since it is larger than the sum of its proper divisors (177217).

1240463 is an equidigital number, since it uses as much as digits as its factorization.

1240463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177216.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1240463 is about 1113.7607463006. The cubic root of 1240463 is about 107.4470768883.

Adding to 1240463 its reverse (3640421), we get a palindrome (4880884).

The spelling of 1240463 in words is "one million, two hundred forty thousand, four hundred sixty-three".