440294399 has 4 divisors (see below), whose sum is σ = 440567640. Its totient is φ = 440021160.

The previous prime is 440294389. The next prime is 440294417. The reversal of 440294399 is 993492044.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 440294399 - 2⁴ = 440294383 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 (440294369) 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, 134189 + ... + 137430.

It is an arithmetic number, because the mean of its divisors is an integer number (110141910).

Almost surely, 2^440294399 is an apocalyptic number.

440294399 is a deficient number, since it is larger than the sum of its proper divisors (273241).

440294399 is a wasteful number, since it uses less digits than its factorization.

440294399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273240.

The product of its (nonzero) digits is 279936, while the sum is 44.

The square root of 440294399 is about 20983.1932507900. The cubic root of 440294399 is about 760.7600884846.

The spelling of 440294399 in words is "four hundred forty million, two hundred ninety-four thousand, three hundred ninety-nine".