40012051200 has 432 divisors, whose sum is σ = 150333878016. Its totient is φ = 9277030400.

The previous prime is 40012051169. The next prime is 40012051229. The reversal of 40012051200 is 215021004.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 40012051200.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4853482 + ... + 4861718.

It is an arithmetic number, because the mean of its divisors is an integer number (347995088).

Almost surely, 2^40012051200 is an apocalyptic number.

40012051200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40012051200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75166939008).

40012051200 is an abundant number, since it is smaller than the sum of its proper divisors (110321826816).

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

40012051200 is a wasteful number, since it uses less digits than its factorization.

40012051200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8300 (or 8281 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

Adding to 40012051200 its reverse (215021004), we get a palindrome (40227072204).

The spelling of 40012051200 in words is "forty billion, twelve million, fifty-one thousand, two hundred".