440012322 has 24 divisors (see below), whose sum is σ = 953849520. Its totient is φ = 146595480.

The previous prime is 440012297. The next prime is 440012327. The reversal of 440012322 is 223210044.

It is a super-2 number, since 2×440012322² = 387221687023663368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 440012295 and 440012304.

It is not an unprimeable number, because it can be changed into a prime (440012327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38329 + ... + 48467.

It is an arithmetic number, because the mean of its divisors is an integer number (39743730).

Almost surely, 2^440012322 is an apocalyptic number.

440012322 is an abundant number, since it is smaller than the sum of its proper divisors (513837198).

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

440012322 is a wasteful number, since it uses less digits than its factorization.

440012322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12558 (or 12555 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 440012322 is about 20976.4706754973. The cubic root of 440012322 is about 760.5975920830.

Adding to 440012322 its reverse (223210044), we get a palindrome (663222366).

The spelling of 440012322 in words is "four hundred forty million, twelve thousand, three hundred twenty-two".