440734649 has 4 divisors (see below), whose sum is σ = 450984336. Its totient is φ = 430484964.

The previous prime is 440734597. The next prime is 440734669. The reversal of 440734649 is 946437044.

It is a happy number.

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 440734649 - 2¹² = 440730553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (440734669) 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, 5124779 + ... + 5124864.

It is an arithmetic number, because the mean of its divisors is an integer number (112746084).

Almost surely, 2^440734649 is an apocalyptic number.

It is an amenable number.

440734649 is a deficient number, since it is larger than the sum of its proper divisors (10249687).

440734649 is a wasteful number, since it uses less digits than its factorization.

440734649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10249686.

The product of its (nonzero) digits is 290304, while the sum is 41.

The square root of 440734649 is about 20993.6811683897. The cubic root of 440734649 is about 761.0135651444.

The spelling of 440734649 in words is "four hundred forty million, seven hundred thirty-four thousand, six hundred forty-nine".