121442394 has 8 divisors (see below), whose sum is σ = 242884800. Its totient is φ = 40480796.

The previous prime is 121442389. The next prime is 121442437. The reversal of 121442394 is 493244121.

It is a sphenic number, since it is the product of 3 distinct primes.

121442394 is an admirable number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 10120194 + ... + 10120205.

It is an arithmetic number, because the mean of its divisors is an integer number (30360600).

Almost surely, 2^121442394 is an apocalyptic number.

121442394 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

121442394 is a wasteful number, since it uses less digits than its factorization.

121442394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20240404.

The product of its digits is 6912, while the sum is 30.

The square root of 121442394 is about 11020.0904714980. The cubic root of 121442394 is about 495.2107989020.

The spelling of 121442394 in words is "one hundred twenty-one million, four hundred forty-two thousand, three hundred ninety-four".