40281395 has 32 divisors (see below), whose sum is σ = 62899200. Its totient is φ = 24013440.

The previous prime is 40281391. The next prime is 40281413. The reversal of 40281395 is 59318204.

40281395 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 40281395 - 2² = 40281391 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40281391) 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 31 ways as a sum of consecutive naturals, for example, 6581 + ... + 11129.

It is an arithmetic number, because the mean of its divisors is an integer number (1965600).

Almost surely, 2^40281395 is an apocalyptic number.

40281395 is a deficient number, since it is larger than the sum of its proper divisors (22617805).

40281395 is a wasteful number, since it uses less digits than its factorization.

40281395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4595.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 40281395 is about 6346.7625605501. The cubic root of 40281395 is about 342.7952805467.

Adding to 40281395 its reverse (59318204), we get a palindrome (99599599).

The spelling of 40281395 in words is "forty million, two hundred eighty-one thousand, three hundred ninety-five".