1242652212 has 96 divisors (see below), whose sum is σ = 3401395200. Its totient is φ = 391244256.

The previous prime is 1242652207. The next prime is 1242652219. The reversal of 1242652212 is 2122562421.

1242652212 is a `hidden beast` number, since 1 + 2 + 4 + 2 + 652 + 2 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242652219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 908353 + ... + 909719.

It is an arithmetic number, because the mean of its divisors is an integer number (35431200).

Almost surely, 2^1242652212 is an apocalyptic number.

1242652212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1242652212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1700697600).

1242652212 is an abundant number, since it is smaller than the sum of its proper divisors (2158742988).

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

1242652212 is a wasteful number, since it uses less digits than its factorization.

1242652212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1842 (or 1834 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 1242652212 is about 35251.2724876706. The cubic root of 1242652212 is about 1075.1024851274.

The spelling of 1242652212 in words is "one billion, two hundred forty-two million, six hundred fifty-two thousand, two hundred twelve".