40120523040 has 96 divisors (see below), whose sum is σ = 136101180096. Its totient is φ = 9875819520.

The previous prime is 40120523029. The next prime is 40120523071. The reversal of 40120523040 is 4032502104.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 40120522998 and 40120523016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3208546 + ... + 3221025.

It is an arithmetic number, because the mean of its divisors is an integer number (1417720626).

Almost surely, 2^40120523040 is an apocalyptic number.

40120523040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40120523040 is an abundant number, since it is smaller than the sum of its proper divisors (95980657056).

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

40120523040 is a wasteful number, since it uses less digits than its factorization.

40120523040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6429602 (or 6429594 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The spelling of 40120523040 in words is "forty billion, one hundred twenty million, five hundred twenty-three thousand, forty".