402210142 has 8 divisors (see below), whose sum is σ = 604301256. Its totient is φ = 200776392.

The previous prime is 402210121. The next prime is 402210167. The reversal of 402210142 is 241012204.

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

It is a congruent number.

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, 162808 + ... + 165259.

It is an arithmetic number, because the mean of its divisors is an integer number (75537657).

Almost surely, 2^402210142 is an apocalyptic number.

402210142 is a deficient number, since it is larger than the sum of its proper divisors (202091114).

402210142 is a wasteful number, since it uses less digits than its factorization.

402210142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328682.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 402210142 is about 20055.1774362632. The cubic root of 402210142 is about 738.1608467892.

Adding to 402210142 its reverse (241012204), we get a palindrome (643222346).

The spelling of 402210142 in words is "four hundred two million, two hundred ten thousand, one hundred forty-two".