1242265602 has 32 divisors (see below), whose sum is σ = 2554876800. Its totient is φ = 402392448.

The previous prime is 1242265579. The next prime is 1242265603. The reversal of 1242265602 is 2065622421.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1242265602.

It is not an unprimeable number, because it can be changed into a prime (1242265603) 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 15 ways as a sum of consecutive naturals, for example, 200974 + ... + 207062.

It is an arithmetic number, because the mean of its divisors is an integer number (79839900).

Almost surely, 2^1242265602 is an apocalyptic number.

1242265602 is an abundant number, since it is smaller than the sum of its proper divisors (1312611198).

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

1242265602 is a wasteful number, since it uses less digits than its factorization.

1242265602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7050.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 1242265602 is about 35245.7884292578. The cubic root of 1242265602 is about 1074.9909794087.

The spelling of 1242265602 in words is "one billion, two hundred forty-two million, two hundred sixty-five thousand, six hundred two".