40906089 has 24 divisors (see below), whose sum is σ = 68807232. Its totient is φ = 22932000.

The previous prime is 40906079. The next prime is 40906093. The reversal of 40906089 is 98060904.

40906089 is a `hidden beast` number, since 40 + 9 + 0 + 608 + 9 = 666.

It is not a de Polignac number, because 40906089 - 2¹¹ = 40904041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40906039) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2787 + ... + 9464.

It is an arithmetic number, because the mean of its divisors is an integer number (2866968).

Almost surely, 2^40906089 is an apocalyptic number.

It is an amenable number.

40906089 is a deficient number, since it is larger than the sum of its proper divisors (27901143).

40906089 is a wasteful number, since it uses less digits than its factorization.

40906089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12317 (or 12314 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 40906089 is about 6395.7868163346. The cubic root of 40906089 is about 344.5582499842.

The spelling of 40906089 in words is "forty million, nine hundred six thousand, eighty-nine".