40437005 has 12 divisors (see below), whose sum is σ = 56447100. Its totient is φ = 27728064.

The previous prime is 40436993. The next prime is 40437011. The reversal of 40437005 is 50073404.

It can be written as a sum of positive squares in 2 ways, for example, as 29658916 + 10778089 = 5446^2 + 3283^2 .

It is not a de Polignac number, because 40437005 - 2⁸ = 40436749 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82280 + ... + 82769.

It is an arithmetic number, because the mean of its divisors is an integer number (4703925).

Almost surely, 2^40437005 is an apocalyptic number.

It is an amenable number.

40437005 is a deficient number, since it is larger than the sum of its proper divisors (16010095).

40437005 is a wasteful number, since it uses less digits than its factorization.

40437005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165068 (or 165061 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 40437005 is about 6359.0097499532. The cubic root of 40437005 is about 343.2361278423.

The spelling of 40437005 in words is "forty million, four hundred thirty-seven thousand, five".