40016637 has 6 divisors (see below), whose sum is σ = 57801822. Its totient is φ = 26677752.

The previous prime is 40016611. The next prime is 40016651. The reversal of 40016637 is 73661004.

It can be written as a sum of positive squares in only one way, i.e., 39765636 + 251001 = 6306^2 + 501^2 .

It is not a de Polignac number, because 40016637 - 2¹⁴ = 40000253 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40016637.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40016687) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2223138 + ... + 2223155.

It is an arithmetic number, because the mean of its divisors is an integer number (9633637).

Almost surely, 2^40016637 is an apocalyptic number.

It is an amenable number.

40016637 is a deficient number, since it is larger than the sum of its proper divisors (17785185).

40016637 is a wasteful number, since it uses less digits than its factorization.

40016637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4446299 (or 4446296 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 40016637 is about 6325.8704539375. The cubic root of 40016637 is about 342.0425975462.

The spelling of 40016637 in words is "forty million, sixteen thousand, six hundred thirty-seven".