40816605 has 32 divisors (see below), whose sum is σ = 68610816. Its totient is φ = 20680704.

The previous prime is 40816583. The next prime is 40816619. The reversal of 40816605 is 50661804.

It is not a de Polignac number, because 40816605 - 2¹² = 40812509 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66279 + ... + 66891.

It is an arithmetic number, because the mean of its divisors is an integer number (2144088).

Almost surely, 2^40816605 is an apocalyptic number.

It is an amenable number.

40816605 is a deficient number, since it is larger than the sum of its proper divisors (27794211).

40816605 is a wasteful number, since it uses less digits than its factorization.

40816605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 40816605 is about 6388.7874436391. The cubic root of 40816605 is about 344.3068207469.

The spelling of 40816605 in words is "forty million, eight hundred sixteen thousand, six hundred five".