440242266 has 16 divisors (see below), whose sum is σ = 885405600. Its totient is φ = 145927248.

The previous prime is 440242249. The next prime is 440242289. The reversal of 440242266 is 662242044.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203881 + ... + 206028.

It is an arithmetic number, because the mean of its divisors is an integer number (55337850).

Almost surely, 2^440242266 is an apocalyptic number.

440242266 is an abundant number, since it is smaller than the sum of its proper divisors (445163334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

440242266 is a wasteful number, since it uses less digits than its factorization.

440242266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410093.

The product of its (nonzero) digits is 18432, while the sum is 30.

The square root of 440242266 is about 20981.9509579067. The cubic root of 440242266 is about 760.7300614003.

The spelling of 440242266 in words is "four hundred forty million, two hundred forty-two thousand, two hundred sixty-six".