40084020520 has 64 divisors (see below), whose sum is σ = 98574796800. Its totient is φ = 14603658240.

The previous prime is 40084020481. The next prime is 40084020563. The reversal of 40084020520 is 2502048004.

It is a happy 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, 929680 + ... + 971839.

It is an arithmetic number, because the mean of its divisors is an integer number (1540231200).

Almost surely, 2^40084020520 is an apocalyptic number.

40084020520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40084020520 is an abundant number, since it is smaller than the sum of its proper divisors (58490776280).

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

40084020520 is a wasteful number, since it uses less digits than its factorization.

40084020520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1901578 (or 1901574 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

Adding to 40084020520 its reverse (2502048004), we get a palindrome (42586068524).

The spelling of 40084020520 in words is "forty billion, eighty-four million, twenty thousand, five hundred twenty".