40354245 has 36 divisors (see below), whose sum is σ = 71407908. Its totient is φ = 21081600.

The previous prime is 40354217. The next prime is 40354261. The reversal of 40354245 is 54245304.

40354245 = T₄₅₄ + T₄₅₅ + ... + T₆₉₄.

40354245 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 6 ways, for example, as 10771524 + 29582721 = 3282^2 + 5439^2 .

It is not a de Polignac number, because 40354245 - 2¹¹ = 40352197 is a prime.

It is a congruent number.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 167325 + ... + 167565.

It is an arithmetic number, because the mean of its divisors is an integer number (1983553).

Almost surely, 2^40354245 is an apocalyptic number.

40354245 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40354245 is a deficient number, since it is larger than the sum of its proper divisors (31053663).

40354245 is a wasteful number, since it uses less digits than its factorization.

40354245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374 (or 310 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 40354245 is about 6352.4991145218. The cubic root of 40354245 is about 343.0018076273.

Adding to 40354245 its reverse (54245304), we get a palindrome (94599549).

The spelling of 40354245 in words is "forty million, three hundred fifty-four thousand, two hundred forty-five".