40739777 has 8 divisors (see below), whose sum is σ = 44263464. Its totient is φ = 37271808.

The previous prime is 40739771. The next prime is 40739843. The reversal of 40739777 is 77793704.

It is a happy number.

40739777 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3236401 + 37503376 = 1799^2 + 6124^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 40739777 - 2⁴ = 40739761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40739771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12398 + ... + 15335.

It is an arithmetic number, because the mean of its divisors is an integer number (5532933).

Almost surely, 2^40739777 is an apocalyptic number.

It is an amenable number.

40739777 is a deficient number, since it is larger than the sum of its proper divisors (3523687).

40739777 is a wasteful number, since it uses less digits than its factorization.

40739777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27859.

The product of its (nonzero) digits is 259308, while the sum is 44.

The square root of 40739777 is about 6382.7718900177. The cubic root of 40739777 is about 344.0906585690.

The spelling of 40739777 in words is "forty million, seven hundred thirty-nine thousand, seven hundred seventy-seven".