40985777 has 8 divisors (see below), whose sum is σ = 47483136. Its totient is φ = 34648992.

The previous prime is 40985767. The next prime is 40985783. The reversal of 40985777 is 77758904.

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

It is not a de Polignac number, because 40985777 - 2⁶ = 40985713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40985767) 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, 39593 + ... + 40614.

It is an arithmetic number, because the mean of its divisors is an integer number (5935392).

Almost surely, 2^40985777 is an apocalyptic number.

It is an amenable number.

40985777 is a deficient number, since it is larger than the sum of its proper divisors (6497359).

40985777 is an equidigital number, since it uses as much as digits as its factorization.

40985777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80287.

The product of its (nonzero) digits is 493920, while the sum is 47.

The square root of 40985777 is about 6402.0135113884. The cubic root of 40985777 is about 344.7818462610.

The spelling of 40985777 in words is "forty million, nine hundred eighty-five thousand, seven hundred seventy-seven".