423140422402 has 8 divisors (see below), whose sum is σ = 635161106700. Its totient is φ = 211420053504.

The previous prime is 423140422399. The next prime is 423140422489. The reversal of 423140422402 is 204224041324.

It can be written as a sum of positive squares in 2 ways, for example, as 402274331001 + 20866091401 = 634251^2 + 144451^2 .

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

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, 75075327 + ... + 75080962.

Almost surely, 2^423140422402 is an apocalyptic number.

423140422402 is a deficient number, since it is larger than the sum of its proper divisors (212020684298).

423140422402 is a wasteful number, since it uses less digits than its factorization.

423140422402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150157700.

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 423140422402 its reverse (204224041324), we get a palindrome (627364463726).

The spelling of 423140422402 in words is "four hundred twenty-three billion, one hundred forty million, four hundred twenty-two thousand, four hundred two".