201006442 has 16 divisors (see below), whose sum is σ = 371089152. Its totient is φ = 79518960.

The previous prime is 201006427. The next prime is 201006461. The reversal of 201006442 is 244600102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 552034 + ... + 552397.

It is an arithmetic number, because the mean of its divisors is an integer number (23193072).

Almost surely, 2^201006442 is an apocalyptic number.

201006442 is a deficient number, since it is larger than the sum of its proper divisors (170082710).

201006442 is a wasteful number, since it uses less digits than its factorization.

201006442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104453.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 201006442 is about 14177.6740687604. The cubic root of 201006442 is about 585.7828581963.

Adding to 201006442 its reverse (244600102), we get a palindrome (445606544).

The spelling of 201006442 in words is "two hundred one million, six thousand, four hundred forty-two".