440434145 has 4 divisors (see below), whose sum is σ = 528520980. Its totient is φ = 352347312.

The previous prime is 440434139. The next prime is 440434151. The reversal of 440434145 is 541434044.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (440434139) and next prime (440434151).

It can be written as a sum of positive squares in 2 ways, for example, as 133448704 + 306985441 = 11552^2 + 17521^2 .

It is a cyclic number.

It is not a de Polignac number, because 440434145 - 2⁴ = 440434129 is a prime.

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, 44043410 + ... + 44043419.

It is an arithmetic number, because the mean of its divisors is an integer number (132130245).

Almost surely, 2^440434145 is an apocalyptic number.

It is an amenable number.

440434145 is a deficient number, since it is larger than the sum of its proper divisors (88086835).

440434145 is an equidigital number, since it uses as much as digits as its factorization.

440434145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88086834.

The product of its (nonzero) digits is 15360, while the sum is 29.

The square root of 440434145 is about 20986.5229373520. The cubic root of 440434145 is about 760.8405664057.

Adding to 440434145 its reverse (541434044), we get a palindrome (981868189).

The spelling of 440434145 in words is "four hundred forty million, four hundred thirty-four thousand, one hundred forty-five".