40012021104 has 40 divisors (see below), whose sum is σ = 112761151872. Its totient is φ = 12124854720.

The previous prime is 40012021099. The next prime is 40012021123. The reversal of 40012021104 is 40112021004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37889644 + ... + 37890699.

Almost surely, 2^40012021104 is an apocalyptic number.

40012021104 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

40012021104 is an abundant number, since it is smaller than the sum of its proper divisors (72749130768).

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

40012021104 is a wasteful number, since it uses less digits than its factorization.

40012021104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75780365 (or 75780359 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 40012021104 its reverse (40112021004), we get a palindrome (80124042108).

The spelling of 40012021104 in words is "forty billion, twelve million, twenty-one thousand, one hundred four".