40403720800 has 36 divisors (see below), whose sum is σ = 98635585356. Its totient is φ = 16161488000.

The previous prime is 40403720789. The next prime is 40403720849. The reversal of 40403720800 is 802730404.

40403720800 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25251526 + ... + 25253125.

It is an arithmetic number, because the mean of its divisors is an integer number (2739877371).

Almost surely, 2^40403720800 is an apocalyptic number.

40403720800 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40403720800 is an abundant number, since it is smaller than the sum of its proper divisors (58231864556).

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

40403720800 is a wasteful number, since it uses less digits than its factorization.

40403720800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50504671 (or 50504658 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The spelling of 40403720800 in words is "forty billion, four hundred three million, seven hundred twenty thousand, eight hundred".