40412705 has 4 divisors (see below), whose sum is σ = 48495252. Its totient is φ = 32330160.

The previous prime is 40412681. The next prime is 40412707. The reversal of 40412705 is 50721404.

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 9186961 + 31225744 = 3031^2 + 5588^2 .

It is a de Polignac number, because none of the positive numbers 2^k-40412705 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40412707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4041266 + ... + 4041275.

It is an arithmetic number, because the mean of its divisors is an integer number (12123813).

Almost surely, 2^40412705 is an apocalyptic number.

It is an amenable number.

40412705 is a deficient number, since it is larger than the sum of its proper divisors (8082547).

40412705 is an equidigital number, since it uses as much as digits as its factorization.

40412705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8082546.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 40412705 is about 6357.0987879692. The cubic root of 40412705 is about 343.1673598974.

The spelling of 40412705 in words is "forty million, four hundred twelve thousand, seven hundred five".