440226891 has 12 divisors (see below), whose sum is σ = 684797568. Its totient is φ = 270908784.

The previous prime is 440226889. The next prime is 440226893. The reversal of 440226891 is 198622044.

It is an interprime number because it is at equal distance from previous prime (440226889) and next prime (440226893).

It is not a de Polignac number, because 440226891 - 2¹ = 440226889 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (440226893) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1881195 + ... + 1881428.

It is an arithmetic number, because the mean of its divisors is an integer number (57066464).

Almost surely, 2^440226891 is an apocalyptic number.

440226891 is a deficient number, since it is larger than the sum of its proper divisors (244570677).

440226891 is a wasteful number, since it uses less digits than its factorization.

440226891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3762642 (or 3762639 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 440226891 is about 20981.5845683781. The cubic root of 440226891 is about 760.7212053970.

The spelling of 440226891 in words is "four hundred forty million, two hundred twenty-six thousand, eight hundred ninety-one".