440154220 has 96 divisors (see below), whose sum is σ = 1081092096. Its totient is φ = 148896000.

The previous prime is 440154193. The next prime is 440154227. The reversal of 440154220 is 22451044.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 440154191 and 440154200.

It is not an unprimeable number, because it can be changed into a prime (440154227) 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, 186045 + ... + 188395.

It is an arithmetic number, because the mean of its divisors is an integer number (11261376).

Almost surely, 2^440154220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 440154220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (540546048).

440154220 is an abundant number, since it is smaller than the sum of its proper divisors (640937876).

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

440154220 is a wasteful number, since it uses less digits than its factorization.

440154220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2431 (or 2429 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 440154220 is about 20979.8527163562. The cubic root of 440154220 is about 760.6793440947.

The spelling of 440154220 in words is "four hundred forty million, one hundred fifty-four thousand, two hundred twenty".