40127751 has 16 divisors (see below), whose sum is σ = 59685120. Its totient is φ = 26645400.

The previous prime is 40127741. The next prime is 40127777. The reversal of 40127751 is 15772104.

It is not a de Polignac number, because 40127751 - 2⁵ = 40127719 is a prime.

It is a super-2 number, since 2×40127751² = 3220472800636002, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40127741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4276 + ... + 9926.

It is an arithmetic number, because the mean of its divisors is an integer number (3730320).

Almost surely, 2^40127751 is an apocalyptic number.

40127751 is a deficient number, since it is larger than the sum of its proper divisors (19557369).

40127751 is a wasteful number, since it uses less digits than its factorization.

40127751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5923 (or 5917 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 40127751 is about 6334.6468725573. The cubic root of 40127751 is about 342.3588876481.

Adding to 40127751 its reverse (15772104), we get a palindrome (55899855).

The spelling of 40127751 in words is "forty million, one hundred twenty-seven thousand, seven hundred fifty-one".