201432242 has 16 divisors (see below), whose sum is σ = 330460992. Its totient is φ = 91325520.

The previous prime is 201432233. The next prime is 201432247. The reversal of 201432242 is 242234102.

It is not an unprimeable number, because it can be changed into a prime (201432247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2798 + ... + 20265.

It is an arithmetic number, because the mean of its divisors is an integer number (20653812).

Almost surely, 2^201432242 is an apocalyptic number.

201432242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

201432242 is a deficient number, since it is larger than the sum of its proper divisors (129028750).

201432242 is a wasteful number, since it uses less digits than its factorization.

201432242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23473.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 201432242 is about 14192.6826921481. The cubic root of 201432242 is about 586.1961955704.

Adding to 201432242 its reverse (242234102), we get a palindrome (443666344).

The spelling of 201432242 in words is "two hundred one million, four hundred thirty-two thousand, two hundred forty-two".