402142435 has 4 divisors (see below), whose sum is σ = 482570928. Its totient is φ = 321713944.

The previous prime is 402142421. The next prime is 402142441. The reversal of 402142435 is 534241204.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402142435 is a prime.

It is a super-3 number, since 3×402142435³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

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, 40214239 + ... + 40214248.

It is an arithmetic number, because the mean of its divisors is an integer number (120642732).

Almost surely, 2^402142435 is an apocalyptic number.

402142435 is a deficient number, since it is larger than the sum of its proper divisors (80428493).

402142435 is an equidigital number, since it uses as much as digits as its factorization.

402142435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80428492.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 402142435 is about 20053.4893472433. The cubic root of 402142435 is about 738.1194244447.

Adding to 402142435 its reverse (534241204), we get a palindrome (936383639).

The spelling of 402142435 in words is "four hundred two million, one hundred forty-two thousand, four hundred thirty-five".