440082947 has 4 divisors (see below), whose sum is σ = 447542040. Its totient is φ = 432623856.

The previous prime is 440082901. The next prime is 440082953. The reversal of 440082947 is 749280044.

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 440082947 - 2¹⁴ = 440066563 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 440082947.

It is not an unprimeable number, because it can be changed into a prime (440082967) 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, 3729458 + ... + 3729575.

It is an arithmetic number, because the mean of its divisors is an integer number (111885510).

Almost surely, 2^440082947 is an apocalyptic number.

440082947 is a deficient number, since it is larger than the sum of its proper divisors (7459093).

440082947 is an equidigital number, since it uses as much as digits as its factorization.

440082947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7459092.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 440082947 is about 20978.1540417645. The cubic root of 440082947 is about 760.6382836186.

The spelling of 440082947 in words is "four hundred forty million, eighty-two thousand, nine hundred forty-seven".