40723105 has 16 divisors (see below), whose sum is σ = 50892480. Its totient is φ = 31243968.

The previous prime is 40723093. The next prime is 40723121. The reversal of 40723105 is 50132704.

It is a cyclic number.

It is not a de Polignac number, because 40723105 - 2⁹ = 40722593 is a prime.

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, 22774 + ... + 24496.

It is an arithmetic number, because the mean of its divisors is an integer number (3180780).

Almost surely, 2^40723105 is an apocalyptic number.

It is an amenable number.

40723105 is a deficient number, since it is larger than the sum of its proper divisors (10169375).

40723105 is a wasteful number, since it uses less digits than its factorization.

40723105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1920.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 40723105 is about 6381.4657407213. The cubic root of 40723105 is about 344.0437145862.

Adding to 40723105 its reverse (50132704), we get a palindrome (90855809).

The spelling of 40723105 in words is "forty million, seven hundred twenty-three thousand, one hundred five".