440393772077 has 32 divisors (see below), whose sum is σ = 535545630720. Its totient is φ = 353739355200.

The previous prime is 440393772073. The next prime is 440393772083. The reversal of 440393772077 is 770277393044.

It is a happy number.

It is not a de Polignac number, because 440393772077 - 2² = 440393772073 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 (440393772073) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14801738 + ... + 14831460.

It is an arithmetic number, because the mean of its divisors is an integer number (16735800960).

Almost surely, 2^440393772077 is an apocalyptic number.

It is an amenable number.

440393772077 is a deficient number, since it is larger than the sum of its proper divisors (95151858643).

440393772077 is a wasteful number, since it uses less digits than its factorization.

440393772077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30953.

The product of its (nonzero) digits is 6223392, while the sum is 53.

The spelling of 440393772077 in words is "four hundred forty billion, three hundred ninety-three million, seven hundred seventy-two thousand, seventy-seven".