440212124 has 24 divisors (see below), whose sum is σ = 848268288. Its totient is φ = 198224240.

The previous prime is 440212081. The next prime is 440212147. The reversal of 440212124 is 421212044.

It is a junction number, because it is equal to n+sod(n) for n = 440212096 and 440212105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42044 + ... + 51459.

It is an arithmetic number, because the mean of its divisors is an integer number (35344512).

Almost surely, 2^440212124 is an apocalyptic number.

440212124 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

440212124 is a deficient number, since it is larger than the sum of its proper divisors (408056164).

440212124 is a wasteful number, since it uses less digits than its factorization.

440212124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93625 (or 93623 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 440212124 is about 20981.2326615955. The cubic root of 440212124 is about 760.7126994078.

Adding to 440212124 its reverse (421212044), we get a palindrome (861424168).

The spelling of 440212124 in words is "four hundred forty million, two hundred twelve thousand, one hundred twenty-four".