40712105 has 16 divisors (see below), whose sum is σ = 57024000. Its totient is φ = 27321792.

The previous prime is 40712101. The next prime is 40712129. The reversal of 40712105 is 50121704.

It is a cyclic number.

It is not a de Polignac number, because 40712105 - 2² = 40712101 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40712101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10730 + ... + 14019.

It is an arithmetic number, because the mean of its divisors is an integer number (3564000).

Almost surely, 2^40712105 is an apocalyptic number.

It is an amenable number.

40712105 is a deficient number, since it is larger than the sum of its proper divisors (16311895).

40712105 is a wasteful number, since it uses less digits than its factorization.

40712105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24808.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 40712105 is about 6380.6038115526. The cubic root of 40712105 is about 344.0127344529.

Adding to 40712105 its reverse (50121704), we get a palindrome (90833809).

The spelling of 40712105 in words is "forty million, seven hundred twelve thousand, one hundred five".