402132142402 has 8 divisors (see below), whose sum is σ = 638680461516. Its totient is φ = 189238655232.

The previous prime is 402132142369. The next prime is 402132142409. The reversal of 402132142402 is 204241231204.

It can be written as a sum of positive squares in 2 ways, for example, as 400070165121 + 2061977281 = 632511^2 + 45409^2 .

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 (402132142409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5913707943 + ... + 5913708010.

Almost surely, 2^402132142402 is an apocalyptic number.

402132142402 is a deficient number, since it is larger than the sum of its proper divisors (236548319114).

402132142402 is a wasteful number, since it uses less digits than its factorization.

402132142402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11827415972.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 402132142402 its reverse (204241231204), we get a palindrome (606373373606).

The spelling of 402132142402 in words is "four hundred two billion, one hundred thirty-two million, one hundred forty-two thousand, four hundred two".