40127913 has 40 divisors (see below), whose sum is σ = 69464800. Its totient is φ = 22893192.

The previous prime is 40127903. The next prime is 40127917. The reversal of 40127913 is 31972104.

It is not a de Polignac number, because 40127913 - 2⁴ = 40127897 is a prime.

It is a super-2 number, since 2×40127913² = 3220498803471138, which contains 22 as substring.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40127917) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 64518 + ... + 65136.

It is an arithmetic number, because the mean of its divisors is an integer number (1736620).

Almost surely, 2^40127913 is an apocalyptic number.

It is an amenable number.

40127913 is a deficient number, since it is larger than the sum of its proper divisors (29336887).

40127913 is an frugal number, since it uses more digits than its factorization.

40127913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656 (or 629 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 40127913 is about 6334.6596593661. The cubic root of 40127913 is about 342.3593483606.

The spelling of 40127913 in words is "forty million, one hundred twenty-seven thousand, nine hundred thirteen".