40434041440 has 48 divisors (see below), whose sum is σ = 102873537648. Its totient is φ = 14929491456.

The previous prime is 40434041419. The next prime is 40434041477. The reversal of 40434041440 is 4414043404.

It is a junction number, because it is equal to n+sod(n) for n = 40434041399 and 40434041408.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9717642 + ... + 9721801.

It is an arithmetic number, because the mean of its divisors is an integer number (2143198701).

Almost surely, 2^40434041440 is an apocalyptic number.

40434041440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40434041440 is an abundant number, since it is smaller than the sum of its proper divisors (62439496208).

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

40434041440 is a wasteful number, since it uses less digits than its factorization.

40434041440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19439471 (or 19439463 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 40434041440 its reverse (4414043404), we get a palindrome (44848084844).

The spelling of 40434041440 in words is "forty billion, four hundred thirty-four million, forty-one thousand, four hundred forty".