40104344540 has 48 divisors (see below), whose sum is σ = 90904376640. Its totient is φ = 14773985280.

The previous prime is 40104344509. The next prime is 40104344543. The reversal of 40104344540 is 4544340104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40104344543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61541 + ... + 289820.

It is an arithmetic number, because the mean of its divisors is an integer number (1893841180).

Almost surely, 2^40104344540 is an apocalyptic number.

It is an amenable number.

40104344540 is an abundant number, since it is smaller than the sum of its proper divisors (50800032100).

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

40104344540 is a wasteful number, since it uses less digits than its factorization.

40104344540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351822 (or 351820 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

Adding to 40104344540 its reverse (4544340104), we get a palindrome (44648684644).

The spelling of 40104344540 in words is "forty billion, one hundred four million, three hundred forty-four thousand, five hundred forty".