126222642 has 96 divisors (see below), whose sum is σ = 339026688. Its totient is φ = 33049728.

The previous prime is 126222631. The next prime is 126222647. The reversal of 126222642 is 246222621.

It is a happy number.

126222642 is a `hidden beast` number, since 12 + 6 + 2 + 2 + 2 + 642 = 666.

It is not an unprimeable number, because it can be changed into a prime (126222647) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 430648 + ... + 430940.

It is an arithmetic number, because the mean of its divisors is an integer number (3531528).

Almost surely, 2^126222642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126222642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169513344).

126222642 is an abundant number, since it is smaller than the sum of its proper divisors (212804046).

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

126222642 is a wasteful number, since it uses less digits than its factorization.

126222642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584 (or 581 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 126222642 is about 11234.8850461409. The cubic root of 126222642 is about 501.6249029935.

The spelling of 126222642 in words is "one hundred twenty-six million, two hundred twenty-two thousand, six hundred forty-two".