40024593728 has 56 divisors (see below), whose sum is σ = 90834008832. Its totient is φ = 17141313024.

The previous prime is 40024593727. The next prime is 40024593731. The reversal of 40024593728 is 82739542004.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40024593727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 620201 + ... + 681687.

It is an arithmetic number, because the mean of its divisors is an integer number (1622035872).

Almost surely, 2^40024593728 is an apocalyptic number.

It is an amenable number.

40024593728 is an abundant number, since it is smaller than the sum of its proper divisors (50809415104).

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

40024593728 is a wasteful number, since it uses less digits than its factorization.

40024593728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62959 (or 62949 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 40024593728 in words is "forty billion, twenty-four million, five hundred ninety-three thousand, seven hundred twenty-eight".