40318089 has 16 divisors (see below), whose sum is σ = 62048640. Its totient is φ = 22809600.

The previous prime is 40318081. The next prime is 40318093. The reversal of 40318089 is 98081304.

It is not a de Polignac number, because 40318089 - 2³ = 40318081 is a prime.

It is a super-2 number, since 2×40318089² = 3251096601223842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40318081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7384 + ... + 11625.

It is an arithmetic number, because the mean of its divisors is an integer number (3878040).

Almost surely, 2^40318089 is an apocalyptic number.

It is an amenable number.

40318089 is a deficient number, since it is larger than the sum of its proper divisors (21730551).

40318089 is a wasteful number, since it uses less digits than its factorization.

40318089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19120.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 40318089 is about 6349.6526676662. The cubic root of 40318089 is about 342.8993377881.

The spelling of 40318089 in words is "forty million, three hundred eighteen thousand, eighty-nine".