40260385 has 16 divisors (see below), whose sum is σ = 52827840. Its totient is φ = 29211840.

The previous prime is 40260383. The next prime is 40260391. The reversal of 40260385 is 58306204.

It is not a de Polignac number, because 40260385 - 2¹ = 40260383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40260383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45154 + ... + 46036.

It is an arithmetic number, because the mean of its divisors is an integer number (3301740).

Almost surely, 2^40260385 is an apocalyptic number.

It is an amenable number.

40260385 is a deficient number, since it is larger than the sum of its proper divisors (12567455).

40260385 is a wasteful number, since it uses less digits than its factorization.

40260385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1728.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 40260385 is about 6345.1071700957. The cubic root of 40260385 is about 342.7356717094.

Adding to 40260385 its reverse (58306204), we get a palindrome (98566589).

The spelling of 40260385 in words is "forty million, two hundred sixty thousand, three hundred eighty-five".