121427442 has 96 divisors (see below), whose sum is σ = 296524800. Its totient is φ = 35725536.

The previous prime is 121427429. The next prime is 121427459. The reversal of 121427442 is 244724121.

121427442 is a `hidden beast` number, since 1 + 214 + 2 + 7 + 442 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 338059 + ... + 338417.

It is an arithmetic number, because the mean of its divisors is an integer number (3088800).

Almost surely, 2^121427442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121427442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148262400).

121427442 is an abundant number, since it is smaller than the sum of its proper divisors (175097358).

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

121427442 is a wasteful number, since it uses less digits than its factorization.

121427442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452 (or 449 counting only the distinct ones).

The product of its digits is 3584, while the sum is 27.

The square root of 121427442 is about 11019.4120532812. The cubic root of 121427442 is about 495.1904745998.

The spelling of 121427442 in words is "one hundred twenty-one million, four hundred twenty-seven thousand, four hundred forty-two".