1242302516 has 48 divisors (see below), whose sum is σ = 2684685696. Its totient is φ = 489815424.

The previous prime is 1242302513. The next prime is 1242302521. The reversal of 1242302516 is 6152032421.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242302513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106190 + ... + 117306.

It is an arithmetic number, because the mean of its divisors is an integer number (55930952).

Almost surely, 2^1242302516 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1242302516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1342342848).

1242302516 is an abundant number, since it is smaller than the sum of its proper divisors (1442383180).

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

1242302516 is a wasteful number, since it uses less digits than its factorization.

1242302516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11448 (or 11446 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 1242302516 is about 35246.3120907706. The cubic root of 1242302516 is about 1075.0016271113.

Adding to 1242302516 its reverse (6152032421), we get a palindrome (7394334937).

The spelling of 1242302516 in words is "one billion, two hundred forty-two million, three hundred two thousand, five hundred sixteen".