201600642 has 32 divisors (see below), whose sum is σ = 415062144. Its totient is φ = 65232000.

The previous prime is 201600613. The next prime is 201600643. The reversal of 201600642 is 246006102.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (201600643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132667 + ... + 134177.

It is an arithmetic number, because the mean of its divisors is an integer number (12970692).

Almost surely, 2^201600642 is an apocalyptic number.

201600642 is an abundant number, since it is smaller than the sum of its proper divisors (213461502).

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

201600642 is a wasteful number, since it uses less digits than its factorization.

201600642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2154.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 201600642 is about 14198.6140872974. The cubic root of 201600642 is about 586.3595059752.

Adding to 201600642 its reverse (246006102), we get a palindrome (447606744).

The spelling of 201600642 in words is "two hundred one million, six hundred thousand, six hundred forty-two".