1240038 has 12 divisors (see below), whose sum is σ = 2686788. Its totient is φ = 413340.

The previous prime is 1240027. The next prime is 1240039. The reversal of 1240038 is 8300421.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 68891 = 1240038 / (1 + 2 + 4 + 0 + 0 + 3 + 8).

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 1240038.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240039) 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 5 ways as a sum of consecutive naturals, for example, 34428 + ... + 34463.

It is an arithmetic number, because the mean of its divisors is an integer number (223899).

2^1240038 is an apocalyptic number.

1240038 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1240038 is an abundant number, since it is smaller than the sum of its proper divisors (1446750).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1240038 is a wasteful number, since it uses less digits than its factorization.

1240038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68899 (or 68896 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1240038 is about 1113.5699349390. The cubic root of 1240038 is about 107.4348045288.

Adding to 1240038 its reverse (8300421), we get a palindrome (9540459).

The spelling of 1240038 in words is "one million, two hundred forty thousand, thirty-eight".