40630605 has 16 divisors (see below), whose sum is σ = 65131584. Its totient is φ = 21628800.

The previous prime is 40630591. The next prime is 40630621. The reversal of 40630605 is 50603604.

40630605 is a nontrivial binomial coefficient, being equal to C(9015, 2).

It is not a de Polignac number, because 40630605 - 2⁴ = 40630589 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6762 + ... + 11268.

It is an arithmetic number, because the mean of its divisors is an integer number (4070724).

Almost surely, 2^40630605 is an apocalyptic number.

40630605 is the 9014-th triangular number.

It is an amenable number.

40630605 is a deficient number, since it is larger than the sum of its proper divisors (24500979).

40630605 is a wasteful number, since it uses less digits than its factorization.

40630605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5116.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 40630605 is about 6374.2140692010. The cubic root of 40630605 is about 343.7830258077.

The spelling of 40630605 in words is "forty million, six hundred thirty thousand, six hundred five".