201402210642 has 16 divisors (see below), whose sum is σ = 420317657280. Its totient is φ = 64215197552.

The previous prime is 201402210641. The next prime is 201402210649. The reversal of 201402210642 is 246012204102.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (201402210641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 729718017 + ... + 729718292.

It is an arithmetic number, because the mean of its divisors is an integer number (26269853580).

Almost surely, 2^201402210642 is an apocalyptic number.

201402210642 is an abundant number, since it is smaller than the sum of its proper divisors (218915446638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201402210642 is a wasteful number, since it uses less digits than its factorization.

201402210642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1459436337.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 201402210642 its reverse (246012204102), we get a palindrome (447414414744).

The spelling of 201402210642 in words is "two hundred one billion, four hundred two million, two hundred ten thousand, six hundred forty-two".