40749677 has 4 divisors (see below), whose sum is σ = 40762716. Its totient is φ = 40736640.

The previous prime is 40749673. The next prime is 40749679. The reversal of 40749677 is 77694704.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 16434916 + 24314761 = 4054^2 + 4931^2 .

It is a cyclic number.

It is not a de Polignac number, because 40749677 - 2² = 40749673 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40749671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1277 + ... + 9117.

It is an arithmetic number, because the mean of its divisors is an integer number (10190679).

Almost surely, 2^40749677 is an apocalyptic number.

It is an amenable number.

40749677 is a deficient number, since it is larger than the sum of its proper divisors (13039).

40749677 is an equidigital number, since it uses as much as digits as its factorization.

40749677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13038.

The product of its (nonzero) digits is 296352, while the sum is 44.

The square root of 40749677 is about 6383.5473680392. The cubic root of 40749677 is about 344.1185283143.

The spelling of 40749677 in words is "forty million, seven hundred forty-nine thousand, six hundred seventy-seven".