12420174 has 16 divisors (see below), whose sum is σ = 26751312. Its totient is φ = 3821568.

The previous prime is 12420151. The next prime is 12420211. The reversal of 12420174 is 47102421.

It is a happy number.

12420174 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12420174.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79539 + ... + 79694.

It is an arithmetic number, because the mean of its divisors is an integer number (1671957).

Almost surely, 2^12420174 is an apocalyptic number.

12420174 is an abundant number, since it is smaller than the sum of its proper divisors (14331138).

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

12420174 is a wasteful number, since it uses less digits than its factorization.

12420174 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159251.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 12420174 is about 3524.2267236941. The cubic root of 12420174 is about 231.5843603436.

Adding to 12420174 its reverse (47102421), we get a palindrome (59522595).

The spelling of 12420174 in words is "twelve million, four hundred twenty thousand, one hundred seventy-four".