40434163 has 12 divisors (see below), whose sum is σ = 51312312. Its totient is φ = 31506720.

The previous prime is 40434157. The next prime is 40434169. The reversal of 40434163 is 36143404.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (40434157) and next prime (40434169).

It is not a de Polignac number, because 40434163 - 2²¹ = 38337011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40434169) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36970 + ... + 38047.

It is an arithmetic number, because the mean of its divisors is an integer number (4276026).

Almost surely, 2^40434163 is an apocalyptic number.

40434163 is a deficient number, since it is larger than the sum of its proper divisors (10878149).

40434163 is a wasteful number, since it uses less digits than its factorization.

40434163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75042 (or 75035 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 40434163 is about 6358.7862835607. The cubic root of 40434163 is about 343.2280865285.

Adding to 40434163 its reverse (36143404), we get a palindrome (76577567).

It can be divided in two parts, 404341 and 63, that added together give a palindrome (404404).

The spelling of 40434163 in words is "forty million, four hundred thirty-four thousand, one hundred sixty-three".