201432042 has 96 divisors (see below), whose sum is σ = 524491200. Its totient is φ = 57135456.

The previous prime is 201432029. The next prime is 201432047. The reversal of 201432042 is 240234102.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (201432047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 711633 + ... + 711915.

It is an arithmetic number, because the mean of its divisors is an integer number (5463450).

Almost surely, 2^201432042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201432042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262245600).

201432042 is an abundant number, since it is smaller than the sum of its proper divisors (323059158).

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

201432042 is a wasteful number, since it uses less digits than its factorization.

201432042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577 (or 564 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 201432042 is about 14192.6756462621. The cubic root of 201432042 is about 586.1960015609.

Adding to 201432042 its reverse (240234102), we get a palindrome (441666144).

The spelling of 201432042 in words is "two hundred one million, four hundred thirty-two thousand, forty-two".