40489245 has 12 divisors (see below), whose sum is σ = 70181436. Its totient is φ = 21594240.

The previous prime is 40489243. The next prime is 40489289. The reversal of 40489245 is 54298404.

40489245 is a `hidden beast` number, since 404 + 8 + 9 + 245 = 666.

40489245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 23299929 + 17189316 = 4827^2 + 4146^2 .

It is not a de Polignac number, because 40489245 - 2¹ = 40489243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40489243) 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 11 ways as a sum of consecutive naturals, for example, 449836 + ... + 449925.

It is an arithmetic number, because the mean of its divisors is an integer number (5848453).

Almost surely, 2^40489245 is an apocalyptic number.

40489245 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40489245 is a deficient number, since it is larger than the sum of its proper divisors (29692191).

40489245 is a wasteful number, since it uses less digits than its factorization.

40489245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899772 (or 899769 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 40489245 is about 6363.1159819698. The cubic root of 40489245 is about 343.3838715521.

The spelling of 40489245 in words is "forty million, four hundred eighty-nine thousand, two hundred forty-five".