440742361 has 4 divisors (see below), whose sum is σ = 440785972. Its totient is φ = 440698752.

The previous prime is 440742347. The next prime is 440742371. The reversal of 440742361 is 163247044.

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 147476736 + 293265625 = 12144^2 + 17125^2 .

It is a cyclic number.

It is not a de Polignac number, because 440742361 - 2⁷ = 440742233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (440742371) 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, 2065 + ... + 29761.

It is an arithmetic number, because the mean of its divisors is an integer number (110196493).

Almost surely, 2^440742361 is an apocalyptic number.

It is an amenable number.

440742361 is a deficient number, since it is larger than the sum of its proper divisors (43611).

440742361 is a wasteful number, since it uses less digits than its factorization.

440742361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43610.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 440742361 is about 20993.8648419008. The cubic root of 440742361 is about 761.0180038714.

The spelling of 440742361 in words is "four hundred forty million, seven hundred forty-two thousand, three hundred sixty-one".