440774137 has 4 divisors (see below), whose sum is σ = 441672336. Its totient is φ = 439875940.

The previous prime is 440774099. The next prime is 440774167. The reversal of 440774137 is 731477044.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 440774137 - 2²³ = 432385529 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 440774096 and 440774105.

It is not an unprimeable number, because it can be changed into a prime (440774167) 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, 448363 + ... + 449344.

It is an arithmetic number, because the mean of its divisors is an integer number (110418084).

Almost surely, 2^440774137 is an apocalyptic number.

It is an amenable number.

440774137 is a deficient number, since it is larger than the sum of its proper divisors (898199).

440774137 is an equidigital number, since it uses as much as digits as its factorization.

440774137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898198.

The product of its (nonzero) digits is 65856, while the sum is 37.

The square root of 440774137 is about 20994.6216207866. The cubic root of 440774137 is about 761.0362923539.

The spelling of 440774137 in words is "four hundred forty million, seven hundred seventy-four thousand, one hundred thirty-seven".