40395481 has 8 divisors (see below), whose sum is σ = 46923584. Its totient is φ = 34056720.

The previous prime is 40395473. The next prime is 40395491. The reversal of 40395481 is 18459304.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40395481 - 2³ = 40395473 is a prime.

It is a super-2 number, since 2×40395481² = 3263589770442722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40395431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46875 + ... + 47728.

It is an arithmetic number, because the mean of its divisors is an integer number (5865448).

Almost surely, 2^40395481 is an apocalyptic number.

It is an amenable number.

40395481 is a deficient number, since it is larger than the sum of its proper divisors (6528103).

40395481 is an equidigital number, since it uses as much as digits as its factorization.

40395481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94671.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 40395481 is about 6355.7439375733. The cubic root of 40395481 is about 343.1186000290.

The spelling of 40395481 in words is "forty million, three hundred ninety-five thousand, four hundred eighty-one".