40234406251 has 32 divisors (see below), whose sum is σ = 47982816000. Its totient is φ = 33395338368.

The previous prime is 40234406249. The next prime is 40234406287. The reversal of 40234406251 is 15260443204.

It is not a de Polignac number, because 40234406251 - 2¹ = 40234406249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40234406231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 375016 + ... + 470218.

It is an arithmetic number, because the mean of its divisors is an integer number (1499463000).

Almost surely, 2^40234406251 is an apocalyptic number.

40234406251 is a deficient number, since it is larger than the sum of its proper divisors (7748409749).

40234406251 is a wasteful number, since it uses less digits than its factorization.

40234406251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95323.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 40234406251 its reverse (15260443204), we get a palindrome (55494849455).

The spelling of 40234406251 in words is "forty billion, two hundred thirty-four million, four hundred six thousand, two hundred fifty-one".