40990825 has 24 divisors (see below), whose sum is σ = 55094688. Its totient is φ = 30132480.

The previous prime is 40990823. The next prime is 40990843. The reversal of 40990825 is 52809904.

40990825 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40990825 - 2¹ = 40990823 is a prime.

It is a super-3 number, since 3×40990825³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (40990823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17154 + ... + 19396.

It is an arithmetic number, because the mean of its divisors is an integer number (2295612).

Almost surely, 2^40990825 is an apocalyptic number.

It is an amenable number.

40990825 is a deficient number, since it is larger than the sum of its proper divisors (14103863).

40990825 is a wasteful number, since it uses less digits than its factorization.

40990825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2313 (or 2308 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 40990825 is about 6402.4077502140. The cubic root of 40990825 is about 344.7960006615.

The spelling of 40990825 in words is "forty million, nine hundred ninety thousand, eight hundred twenty-five".