122730442 has 8 divisors (see below), whose sum is σ = 188012736. Its totient is φ = 60059532.

The previous prime is 122730401. The next prime is 122730451. The reversal of 122730442 is 244037221.

It is a happy number.

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

It is a super-2 number, since 2×122730442² = 30125522787030728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 652728 + ... + 652915.

It is an arithmetic number, because the mean of its divisors is an integer number (23501592).

Almost surely, 2^122730442 is an apocalyptic number.

122730442 is a deficient number, since it is larger than the sum of its proper divisors (65282294).

122730442 is a wasteful number, since it uses less digits than its factorization.

122730442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1305692.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 122730442 is about 11078.3772277351. The cubic root of 122730442 is about 496.9554213775.

Adding to 122730442 its reverse (244037221), we get a palindrome (366767663).

The spelling of 122730442 in words is "one hundred twenty-two million, seven hundred thirty thousand, four hundred forty-two".