40044000770 has 8 divisors (see below), whose sum is σ = 72079201404. Its totient is φ = 16017600304.

The previous prime is 40044000761. The next prime is 40044000779. The reversal of 40044000770 is 7700044004.

It is an interprime number because it is at equal distance from previous prime (40044000761) and next prime (40044000779).

It can be written as a sum of positive squares in 2 ways, for example, as 38447758561 + 1596242209 = 196081^2 + 39953^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40044000779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2002200029 + ... + 2002200048.

Almost surely, 2^40044000770 is an apocalyptic number.

40044000770 is a deficient number, since it is larger than the sum of its proper divisors (32035200634).

40044000770 is a wasteful number, since it uses less digits than its factorization.

40044000770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4004400084.

The product of its (nonzero) digits is 3136, while the sum is 26.

Adding to 40044000770 its reverse (7700044004), we get a palindrome (47744044774).

The spelling of 40044000770 in words is "forty billion, forty-four million, seven hundred seventy", and thus it is an aban number.