424178442 has 12 divisors (see below), whose sum is σ = 919053330. Its totient is φ = 141392808.

The previous prime is 424178371. The next prime is 424178449. The reversal of 424178442 is 244871424.

424178442 is a `hidden beast` number, since 42 + 4 + 178 + 442 = 666.

It can be written as a sum of positive squares in only one way, i.e., 412130601 + 12047841 = 20301^2 + 3471^2 .

It is a junction number, because it is equal to n+sod(n) for n = 424178397 and 424178406.

It is not an unprimeable number, because it can be changed into a prime (424178449) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11782717 + ... + 11782752.

Almost surely, 2^424178442 is an apocalyptic number.

424178442 is an abundant number, since it is smaller than the sum of its proper divisors (494874888).

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

424178442 is a wasteful number, since it uses less digits than its factorization.

424178442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23565477 (or 23565474 counting only the distinct ones).

The product of its digits is 57344, while the sum is 36.

The square root of 424178442 is about 20595.5927809811. The cubic root of 424178442 is about 751.3625258654.

The spelling of 424178442 in words is "four hundred twenty-four million, one hundred seventy-eight thousand, four hundred forty-two".