440012263 has 4 divisors (see below), whose sum is σ = 440291808. Its totient is φ = 439732720.

The previous prime is 440012213. The next prime is 440012269. The reversal of 440012263 is 362210044.

It is a happy number.

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 440012263 - 2¹⁷ = 439881191 is a prime.

It is a super-2 number, since 2×440012263² = 387221583180762338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440012269) 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, 137398 + ... + 140563.

It is an arithmetic number, because the mean of its divisors is an integer number (110072952).

Almost surely, 2^440012263 is an apocalyptic number.

440012263 is a deficient number, since it is larger than the sum of its proper divisors (279545).

440012263 is a wasteful number, since it uses less digits than its factorization.

440012263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279544.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 440012263 is about 20976.4692691597. The cubic root of 440012263 is about 760.5975580875.

It can be divided in two parts, 44001 and 2263, that added together give a palindrome (46264).

The spelling of 440012263 in words is "four hundred forty million, twelve thousand, two hundred sixty-three".