40023105 has 16 divisors (see below), whose sum is σ = 66821760. Its totient is φ = 20417408.

The previous prime is 40023097. The next prime is 40023119. The reversal of 40023105 is 50132004.

It is a cyclic number.

It is not a de Polignac number, because 40023105 - 2³ = 40023097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 57660 + ... + 58349.

It is an arithmetic number, because the mean of its divisors is an integer number (4176360).

Almost surely, 2^40023105 is an apocalyptic number.

It is an amenable number.

40023105 is a deficient number, since it is larger than the sum of its proper divisors (26798655).

40023105 is a wasteful number, since it uses less digits than its factorization.

40023105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116040.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 40023105 is about 6326.3816672724. The cubic root of 40023105 is about 342.0610249846.

Adding to 40023105 its reverse (50132004), we get a palindrome (90155109).

The spelling of 40023105 in words is "forty million, twenty-three thousand, one hundred five".