40088400000 has 384 divisors, whose sum is σ = 145245078720. Its totient is φ = 9715200000.

The previous prime is 40088399977. The next prime is 40088400017. The reversal of 40088400000 is 488004.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

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, 13198482 + ... + 13201518.

Almost surely, 2^40088400000 is an apocalyptic number.

40088400000 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 40088400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72622539360).

40088400000 is an abundant number, since it is smaller than the sum of its proper divisors (105156678720).

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

40088400000 is an equidigital number, since it uses as much as digits as its factorization.

40088400000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3090 (or 3058 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 40088400000 its reverse (488004), we get a palindrome (40088888004).

The spelling of 40088400000 in words is "forty billion, eighty-eight million, four hundred thousand".