1210240028 has 12 divisors (see below), whose sum is σ = 2149531272. Its totient is φ = 596088240.

The previous prime is 1210240021. The next prime is 1210240033. The reversal of 1210240028 is 8200420121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1210239991 and 1210240009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210240021) 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, 2257643 + ... + 2258178.

It is an arithmetic number, because the mean of its divisors is an integer number (179127606).

Almost surely, 2^1210240028 is an apocalyptic number.

It is an amenable number.

1210240028 is a deficient number, since it is larger than the sum of its proper divisors (939291244).

1210240028 is a wasteful number, since it uses less digits than its factorization.

1210240028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4515892 (or 4515890 counting only the distinct ones).

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

The square root of 1210240028 is about 34788.5042506860. The cubic root of 1210240028 is about 1065.6726933680.

Adding to 1210240028 its reverse (8200420121), we get a palindrome (9410660149).

The spelling of 1210240028 in words is "one billion, two hundred ten million, two hundred forty thousand, twenty-eight".