40446605 has 4 divisors (see below), whose sum is σ = 48535932. Its totient is φ = 32357280.

The previous prime is 40446589. The next prime is 40446613. The reversal of 40446605 is 50664404.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4674244 + 35772361 = 2162^2 + 5981^2 .

It is not a de Polignac number, because 40446605 - 2⁴ = 40446589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4044656 + ... + 4044665.

It is an arithmetic number, because the mean of its divisors is an integer number (12133983).

Almost surely, 2^40446605 is an apocalyptic number.

It is an amenable number.

40446605 is a deficient number, since it is larger than the sum of its proper divisors (8089327).

40446605 is an equidigital number, since it uses as much as digits as its factorization.

40446605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8089326.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 40446605 is about 6359.7645396665. The cubic root of 40446605 is about 343.2632878335.

The spelling of 40446605 in words is "forty million, four hundred forty-six thousand, six hundred five".