1040247 has 24 divisors (see below), whose sum is σ = 1716624. Its totient is φ = 601344.

The previous prime is 1040227. The next prime is 1040311. The reversal of 1040247 is 7420401.

It is a happy number.

It is not a de Polignac number, because 1040247 - 2⁶ = 1040183 is a prime.

It is a super-2 number, since 2×1040247² = 2164227642018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1728 + ... + 2250.

It is an arithmetic number, because the mean of its divisors is an integer number (71526).

2^1040247 is an apocalyptic number.

1040247 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1040247 is a deficient number, since it is larger than the sum of its proper divisors (676377).

1040247 is a wasteful number, since it uses less digits than its factorization.

1040247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559 (or 556 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 1040247 is about 1019.9249972424. The cubic root of 1040247 is about 101.3239605924.

Adding to 1040247 its reverse (7420401), we get a palindrome (8460648).

The spelling of 1040247 in words is "one million, forty thousand, two hundred forty-seven".