4040202251 has 4 divisors (see below), whose sum is σ = 4179519600. Its totient is φ = 3900884904.

The previous prime is 4040202223. The next prime is 4040202253. The reversal of 4040202251 is 1522020404.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4040202251 - 2¹⁴ = 4040185867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4040202253) 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 3 ways as a sum of consecutive naturals, for example, 69658631 + ... + 69658688.

It is an arithmetic number, because the mean of its divisors is an integer number (1044879900).

Almost surely, 2^4040202251 is an apocalyptic number.

4040202251 is a deficient number, since it is larger than the sum of its proper divisors (139317349).

4040202251 is a wasteful number, since it uses less digits than its factorization.

4040202251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139317348.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 4040202251 is about 63562.5853077107. The cubic root of 4040202251 is about 1592.7014254788.

Adding to 4040202251 its reverse (1522020404), we get a palindrome (5562222655).

The spelling of 4040202251 in words is "four billion, forty million, two hundred two thousand, two hundred fifty-one".