1242004 has 6 divisors (see below), whose sum is σ = 2173514. Its totient is φ = 621000.

The previous prime is 1242001. The next prime is 1242029. The reversal of 1242004 is 4002421.

It can be written as a sum of positive squares in only one way, i.e., 806404 + 435600 = 898^2 + 660^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242001) 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 as a sum of consecutive naturals, namely, 155247 + ... + 155254.

2^1242004 is an apocalyptic number.

It is an amenable number.

1242004 is a deficient number, since it is larger than the sum of its proper divisors (931510).

1242004 is a wasteful number, since it uses less digits than its factorization.

1242004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310505 (or 310503 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 1242004 is about 1114.4523318653. The cubic root of 1242004 is about 107.4915515264.

Adding to 1242004 its reverse (4002421), we get a palindrome (5244425).

The spelling of 1242004 in words is "one million, two hundred forty-two thousand, four".