440623109542 has 72 divisors (see below), whose sum is σ = 845398247400. Its totient is φ = 171608976000.

The previous prime is 440623109539. The next prime is 440623109557. The reversal of 440623109542 is 245901326044.

It is a happy number.

It is a super-2 number, since 2×440623109542² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 440623109495 and 440623109504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 45660334 + ... + 45669982.

It is an arithmetic number, because the mean of its divisors is an integer number (11741642325).

Almost surely, 2^440623109542 is an apocalyptic number.

440623109542 is a deficient number, since it is larger than the sum of its proper divisors (404775137858).

440623109542 is a wasteful number, since it uses less digits than its factorization.

440623109542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13538 (or 13520 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 440623109542 in words is "four hundred forty billion, six hundred twenty-three million, one hundred nine thousand, five hundred forty-two".