423142402 has 8 divisors (see below), whose sum is σ = 636266700. Its totient is φ = 211053504.

The previous prime is 423142367. The next prime is 423142409. The reversal of 423142402 is 204241324.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 415792881 + 7349521 = 20391^2 + 2711^2 .

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

It is not an unprimeable number, because it can be changed into a prime (423142409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 257827 + ... + 259462.

Almost surely, 2^423142402 is an apocalyptic number.

423142402 is a deficient number, since it is larger than the sum of its proper divisors (213124298).

423142402 is a wasteful number, since it uses less digits than its factorization.

423142402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517700.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 423142402 is about 20570.4254209776. The cubic root of 423142402 is about 750.7503021822.

Adding to 423142402 its reverse (204241324), we get a palindrome (627383726).

The spelling of 423142402 in words is "four hundred twenty-three million, one hundred forty-two thousand, four hundred two".