40535427 has 8 divisors (see below), whose sum is σ = 54604816. Its totient is φ = 26744832.

The previous prime is 40535399. The next prime is 40535431. The reversal of 40535427 is 72453504.

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

It is not a de Polignac number, because 40535427 - 2¹² = 40531331 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40535394 and 40535403.

It is not an unprimeable number, because it can be changed into a prime (40535447) 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 7 ways as a sum of consecutive naturals, for example, 69358 + ... + 69939.

It is an arithmetic number, because the mean of its divisors is an integer number (6825602).

Almost surely, 2^40535427 is an apocalyptic number.

40535427 is a deficient number, since it is larger than the sum of its proper divisors (14069389).

40535427 is a wasteful number, since it uses less digits than its factorization.

40535427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139397.

The product of its (nonzero) digits is 16800, while the sum is 30.

The square root of 40535427 is about 6366.7438302479. The cubic root of 40535427 is about 343.5143764019.

The spelling of 40535427 in words is "forty million, five hundred thirty-five thousand, four hundred twenty-seven".