123270442 has 16 divisors (see below), whose sum is σ = 194916960. Its totient is φ = 58307472.

The previous prime is 123270431. The next prime is 123270443. The reversal of 123270442 is 244072321.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (123270443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30513 + ... + 34315.

It is an arithmetic number, because the mean of its divisors is an integer number (12182310).

Almost surely, 2^123270442 is an apocalyptic number.

123270442 is a deficient number, since it is larger than the sum of its proper divisors (71646518).

123270442 is a wasteful number, since it uses less digits than its factorization.

123270442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4677.

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

The square root of 123270442 is about 11102.7222787927. The cubic root of 123270442 is about 497.6832041614.

The spelling of 123270442 in words is "one hundred twenty-three million, two hundred seventy thousand, four hundred forty-two".