440433234 has 64 divisors (see below), whose sum is σ = 1007314560. Its totient is φ = 142560000.

The previous prime is 440433223. The next prime is 440433239. The reversal of 440433234 is 432334044.

It is a super-2 number, since 2×440433234² = 387962867223397512, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 440433198 and 440433207.

It is not an unprimeable number, because it can be changed into a prime (440433239) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 732534 + ... + 733134.

It is an arithmetic number, because the mean of its divisors is an integer number (15739290).

Almost surely, 2^440433234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 440433234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (503657280).

440433234 is an abundant number, since it is smaller than the sum of its proper divisors (566881326).

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

440433234 is a wasteful number, since it uses less digits than its factorization.

440433234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 984 (or 978 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 27.

The square root of 440433234 is about 20986.5012329354. The cubic root of 440433234 is about 760.8400418277.

Adding to 440433234 its reverse (432334044), we get a palindrome (872767278).

The spelling of 440433234 in words is "four hundred forty million, four hundred thirty-three thousand, two hundred thirty-four".