440422312 has 16 divisors (see below), whose sum is σ = 900864000. Its totient is φ = 200191920.

The previous prime is 440422303. The next prime is 440422321. The reversal of 440422312 is 213224044.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (440422303) and next prime (440422321).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2502312 + ... + 2502487.

It is an arithmetic number, because the mean of its divisors is an integer number (56304000).

Almost surely, 2^440422312 is an apocalyptic number.

It is an amenable number.

440422312 is an abundant number, since it is smaller than the sum of its proper divisors (460441688).

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

440422312 is a wasteful number, since it uses less digits than its factorization.

440422312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5004816 (or 5004812 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 440422312 is about 20986.2410164374. The cubic root of 440422312 is about 760.8337525932.

Adding to 440422312 its reverse (213224044), we get a palindrome (653646356).

The spelling of 440422312 in words is "four hundred forty million, four hundred twenty-two thousand, three hundred twelve".