440442330 has 32 divisors (see below), whose sum is σ = 1057926528. Its totient is φ = 117355200.

The previous prime is 440442329. The next prime is 440442337. The reversal of 440442330 is 33244044.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 440442330.

It is not an unprimeable number, because it can be changed into a prime (440442337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36115 + ... + 46745.

It is an arithmetic number, because the mean of its divisors is an integer number (33060204).

Almost surely, 2^440442330 is an apocalyptic number.

440442330 is an abundant number, since it is smaller than the sum of its proper divisors (617484198).

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

440442330 is a wasteful number, since it uses less digits than its factorization.

440442330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12022.

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 440442330 is about 20986.7179425464. The cubic root of 440442330 is about 760.8452795140.

Adding to 440442330 its reverse (33244044), we get a palindrome (473686374).

The spelling of 440442330 in words is "four hundred forty million, four hundred forty-two thousand, three hundred thirty".