40025518 has 16 divisors (see below), whose sum is σ = 66162096. Its totient is φ = 18043200.

The previous prime is 40025483. The next prime is 40025519. The reversal of 40025518 is 81552004.

It is a junction number, because it is equal to n+sod(n) for n = 40025492 and 40025501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40025519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16783 + ... + 19018.

It is an arithmetic number, because the mean of its divisors is an integer number (4135131).

Almost surely, 2^40025518 is an apocalyptic number.

40025518 is a deficient number, since it is larger than the sum of its proper divisors (26136578).

40025518 is a wasteful number, since it uses less digits than its factorization.

40025518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35859.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 40025518 is about 6326.5723737266. The cubic root of 40025518 is about 342.0678991528.

The spelling of 40025518 in words is "forty million, twenty-five thousand, five hundred eighteen".