1240481 has 4 divisors (see below), whose sum is σ = 1353264. Its totient is φ = 1127700.

The previous prime is 1240423. The next prime is 1240483. The reversal of 1240481 is 1840421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1840421 = 11 ⋅167311.

It is a cyclic number.

It is not a de Polignac number, because 1240481 - 2¹⁰ = 1239457 is a prime.

It is a super-2 number, since 2×1240481² = 3077586222722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1240483) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 56375 + ... + 56396.

It is an arithmetic number, because the mean of its divisors is an integer number (338316).

2^1240481 is an apocalyptic number.

1240481 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1240481 is a deficient number, since it is larger than the sum of its proper divisors (112783).

1240481 is a wasteful number, since it uses less digits than its factorization.

1240481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112782.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 1240481 is about 1113.7688270014. The cubic root of 1240481 is about 107.4475965970.

The spelling of 1240481 in words is "one million, two hundred forty thousand, four hundred eighty-one".