201140403450 has 96 divisors (see below), whose sum is σ = 570218932224. Its totient is φ = 45964501440.

The previous prime is 201140403433. The next prime is 201140403473. The reversal of 201140403450 is 54304041102.

It is a self number, because there is not a number n which added to its sum of digits gives 201140403450.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5196067 + ... + 5234633.

It is an arithmetic number, because the mean of its divisors is an integer number (5939780544).

Almost surely, 2^201140403450 is an apocalyptic number.

201140403450 is an abundant number, since it is smaller than the sum of its proper divisors (369078528774).

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

201140403450 is a wasteful number, since it uses less digits than its factorization.

201140403450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43556 (or 43551 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 201140403450 its reverse (54304041102), we get a palindrome (255444444552).

The spelling of 201140403450 in words is "two hundred one billion, one hundred forty million, four hundred three thousand, four hundred fifty".