40777305 has 16 divisors (see below), whose sum is σ = 69081984. Its totient is φ = 20468480.

The previous prime is 40777301. The next prime is 40777313. The reversal of 40777305 is 50377704.

It is not a de Polignac number, because 40777305 - 2² = 40777301 is a prime.

It is a super-4 number, since 4×40777305⁴ (a number of 32 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (40777301) 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, 79701 + ... + 80210.

It is an arithmetic number, because the mean of its divisors is an integer number (4317624).

Almost surely, 2^40777305 is an apocalyptic number.

It is an amenable number.

40777305 is a deficient number, since it is larger than the sum of its proper divisors (28304679).

40777305 is a wasteful number, since it uses less digits than its factorization.

40777305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159936.

The product of its (nonzero) digits is 20580, while the sum is 33.

The square root of 40777305 is about 6385.7110019167. The cubic root of 40777305 is about 344.1962807415.

The spelling of 40777305 in words is "forty million, seven hundred seventy-seven thousand, three hundred five".