40410121040 has 20 divisors (see below), whose sum is σ = 93953531604. Its totient is φ = 16164048384.

The previous prime is 40410121007. The next prime is 40410121043. The reversal of 40410121040 is 4012101404.

It can be written as a sum of positive squares in 2 ways, for example, as 11458417936 + 28951703104 = 107044^2 + 170152^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40410121043) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 252563177 + ... + 252563336.

Almost surely, 2^40410121040 is an apocalyptic number.

40410121040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40410121040 is an abundant number, since it is smaller than the sum of its proper divisors (53543410564).

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

40410121040 is a wasteful number, since it uses less digits than its factorization.

40410121040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505126526 (or 505126520 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 40410121040 its reverse (4012101404), we get a palindrome (44422222444).

The spelling of 40410121040 in words is "forty billion, four hundred ten million, one hundred twenty-one thousand, forty".