1242150416 has 20 divisors (see below), whose sum is σ = 2591795052. Its totient is φ = 573300096.

The previous prime is 1242150409. The next prime is 1242150431. The reversal of 1242150416 is 6140512421.

It can be written as a sum of positive squares in 2 ways, for example, as 268960000 + 973190416 = 16400^2 + 31196^2 .

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

It is an unprimeable number.

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, 2985731 + ... + 2986146.

Almost surely, 2^1242150416 is an apocalyptic number.

1242150416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1242150416 is an abundant number, since it is smaller than the sum of its proper divisors (1349644636).

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

1242150416 is a wasteful number, since it uses less digits than its factorization.

1242150416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5971898 (or 5971892 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 1242150416 is about 35244.1543521759. The cubic root of 1242150416 is about 1074.9577530901.

Adding to 1242150416 its reverse (6140512421), we get a palindrome (7382662837).

The spelling of 1242150416 in words is "one billion, two hundred forty-two million, one hundred fifty thousand, four hundred sixteen".