440542030 has 16 divisors (see below), whose sum is σ = 800252640. Its totient is φ = 174599712.

The previous prime is 440541979. The next prime is 440542033. The reversal of 440542030 is 30245044.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 440541992 and 440542010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440542033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200994 + ... + 203173.

It is an arithmetic number, because the mean of its divisors is an integer number (50015790).

Almost surely, 2^440542030 is an apocalyptic number.

440542030 is a deficient number, since it is larger than the sum of its proper divisors (359710610).

440542030 is a wasteful number, since it uses less digits than its factorization.

440542030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404283.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 440542030 is about 20989.0931199993. The cubic root of 440542030 is about 760.9026843441.

Adding to 440542030 its reverse (30245044), we get a palindrome (470787074).

The spelling of 440542030 in words is "four hundred forty million, five hundred forty-two thousand, thirty".