440424425 has 24 divisors (see below), whose sum is σ = 624965952. Its totient is φ = 301608000.

The previous prime is 440424379. The next prime is 440424461. The reversal of 440424425 is 524424044.

It is not a de Polignac number, because 440424425 - 2²⁶ = 373315561 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 205610 + ... + 207740.

It is an arithmetic number, because the mean of its divisors is an integer number (26040248).

Almost surely, 2^440424425 is an apocalyptic number.

It is an amenable number.

440424425 is a deficient number, since it is larger than the sum of its proper divisors (184541527).

440424425 is a wasteful number, since it uses less digits than its factorization.

440424425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3329 (or 3324 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 29.

The square root of 440424425 is about 20986.2913588847. The cubic root of 440424425 is about 760.8349693338.

Adding to 440424425 its reverse (524424044), we get a palindrome (964848469).

The spelling of 440424425 in words is "four hundred forty million, four hundred twenty-four thousand, four hundred twenty-five".