40445213124 has 24 divisors (see below), whose sum is σ = 94395792960. Its totient is φ = 13478362144.

The previous prime is 40445213089. The next prime is 40445213129. The reversal of 40445213124 is 42131254404.

It is a junction number, because it is equal to n+sod(n) for n = 40445213091 and 40445213100.

It is not an unprimeable number, because it can be changed into a prime (40445213129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 371784 + ... + 468095.

It is an arithmetic number, because the mean of its divisors is an integer number (3933158040).

Almost surely, 2^40445213124 is an apocalyptic number.

It is an amenable number.

40445213124 is an abundant number, since it is smaller than the sum of its proper divisors (53950579836).

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

40445213124 is a wasteful number, since it uses less digits than its factorization.

40445213124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843899 (or 843897 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 40445213124 its reverse (42131254404), we get a palindrome (82576467528).

The spelling of 40445213124 in words is "forty billion, four hundred forty-five million, two hundred thirteen thousand, one hundred twenty-four".