40388409200 has 60 divisors (see below), whose sum is σ = 97364606808. Its totient is φ = 16100179200.

The previous prime is 40388409197. The next prime is 40388409223. The reversal of 40388409200 is 290488304.

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 11 ways as a sum of consecutive naturals, for example, 55106 + ... + 289505.

Almost surely, 2^40388409200 is an apocalyptic number.

40388409200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40388409200 is an abundant number, since it is smaller than the sum of its proper divisors (56976197608).

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

40388409200 is a wasteful number, since it uses less digits than its factorization.

40388409200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344922 (or 344911 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The spelling of 40388409200 in words is "forty billion, three hundred eighty-eight million, four hundred nine thousand, two hundred".