440270399 has 4 divisors (see below), whose sum is σ = 440515320. Its totient is φ = 440025480.

The previous prime is 440270381. The next prime is 440270447. The reversal of 440270399 is 993072044.

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 440270399 - 2⁸ = 440270143 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 (440270309) 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, 119744 + ... + 123365.

It is an arithmetic number, because the mean of its divisors is an integer number (110128830).

Almost surely, 2^440270399 is an apocalyptic number.

440270399 is a deficient number, since it is larger than the sum of its proper divisors (244921).

440270399 is a wasteful number, since it uses less digits than its factorization.

440270399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244920.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 440270399 is about 20982.6213567323. The cubic root of 440270399 is about 760.7462654805.

The spelling of 440270399 in words is "four hundred forty million, two hundred seventy thousand, three hundred ninety-nine".