201036406 has 4 divisors (see below), whose sum is σ = 301554612. Its totient is φ = 100518202.

The previous prime is 201036401. The next prime is 201036427. The reversal of 201036406 is 604630102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 604630102 = 2 ⋅302315051.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201036401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50259100 + ... + 50259103.

It is an arithmetic number, because the mean of its divisors is an integer number (75388653).

Almost surely, 2^201036406 is an apocalyptic number.

201036406 is a deficient number, since it is larger than the sum of its proper divisors (100518206).

201036406 is a wasteful number, since it uses less digits than its factorization.

201036406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100518205.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 201036406 is about 14178.7307612494. The cubic root of 201036406 is about 585.8119642709.

Adding to 201036406 its reverse (604630102), we get a palindrome (805666508).

It can be divided in two parts, 2010 and 36406, that added together give a 4-th power (38416 = 14⁴).

The spelling of 201036406 in words is "two hundred one million, thirty-six thousand, four hundred six".