40045825 has 12 divisors (see below), whose sum is σ = 52270960. Its totient is φ = 30350160.

The previous prime is 40045777. The next prime is 40045843. The reversal of 40045825 is 52854004.

It is not a de Polignac number, because 40045825 - 2⁷ = 40045697 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40045793 and 40045802.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41679 + ... + 42628.

Almost surely, 2^40045825 is an apocalyptic number.

It is an amenable number.

40045825 is a deficient number, since it is larger than the sum of its proper divisors (12225135).

40045825 is a wasteful number, since it uses less digits than its factorization.

40045825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84336 (or 84331 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 40045825 is about 6328.1770676870. The cubic root of 40045825 is about 342.1257389073.

Adding to 40045825 its reverse (52854004), we get a palindrome (92899829).

It can be divided in two parts, 400 and 45825, that added together give a square (46225 = 215²).

The spelling of 40045825 in words is "forty million, forty-five thousand, eight hundred twenty-five".