4312022440 has 64 divisors (see below), whose sum is σ = 10654312320. Its totient is φ = 1557600000.

The previous prime is 4312022419. The next prime is 4312022453. The reversal of 4312022440 is 442202134.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33990 + ... + 98890.

It is an arithmetic number, because the mean of its divisors is an integer number (166473630).

Almost surely, 2^4312022440 is an apocalyptic number.

4312022440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4312022440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5327156160).

4312022440 is an abundant number, since it is smaller than the sum of its proper divisors (6342289880).

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

4312022440 is a wasteful number, since it uses less digits than its factorization.

4312022440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65074 (or 65070 counting only the distinct ones).

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

The square root of 4312022440 is about 65665.9915024513. The cubic root of 4312022440 is about 1627.6474323398.

Adding to 4312022440 its reverse (442202134), we get a palindrome (4754224574).

The spelling of 4312022440 in words is "four billion, three hundred twelve million, twenty-two thousand, four hundred forty".