1242045204 has 12 divisors (see below), whose sum is σ = 2898105504. Its totient is φ = 414015064.

The previous prime is 1242045199. The next prime is 1242045209. The reversal of 1242045204 is 4025402421.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1242045199) and next prime (1242045209).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242045209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51751872 + ... + 51751895.

It is an arithmetic number, because the mean of its divisors is an integer number (241508792).

Almost surely, 2^1242045204 is an apocalyptic number.

It is an amenable number.

1242045204 is an abundant number, since it is smaller than the sum of its proper divisors (1656060300).

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

1242045204 is a wasteful number, since it uses less digits than its factorization.

1242045204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103503774 (or 103503772 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 1242045204 is about 35242.6617042470. The cubic root of 1242045204 is about 1074.9274020561.

Adding to 1242045204 its reverse (4025402421), we get a palindrome (5267447625).

The spelling of 1242045204 in words is "one billion, two hundred forty-two million, forty-five thousand, two hundred four".