40389001527640 has 64 divisors (see below), whose sum is σ = 95665522910400. Its totient is φ = 15316429320192.

The previous prime is 40389001527629. The next prime is 40389001527689. The reversal of 40389001527640 is 4672510098304.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194148645 + ... + 194356564.

It is an arithmetic number, because the mean of its divisors is an integer number (1494773795475).

It is a 1-persistent number, because it is pandigital, but 2⋅40389001527640 = 80778003055280 is not.

Almost surely, 2^{40389001527640} is an apocalyptic number.

40389001527640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40389001527640 is an abundant number, since it is smaller than the sum of its proper divisors (55276521382760).

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

40389001527640 is a wasteful number, since it uses less digits than its factorization.

40389001527640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388505356 (or 388505352 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 40389001527640 in words is "forty trillion, three hundred eighty-nine billion, one million, five hundred twenty-seven thousand, six hundred forty".