40183894400 has 192 divisors, whose sum is σ = 109796149680. Its totient is φ = 14435573760.

The previous prime is 40183894397. The next prime is 40183894417. The reversal of 40183894400 is 449838104.

It is a super-2 number, since 2×40183894400² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1526147 + ... + 1552253.

Almost surely, 2^40183894400 is an apocalyptic number.

40183894400 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 40183894400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54898074840).

40183894400 is an abundant number, since it is smaller than the sum of its proper divisors (69612255280).

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

40183894400 is a wasteful number, since it uses less digits than its factorization.

40183894400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26181 (or 26164 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 41.

The spelling of 40183894400 in words is "forty billion, one hundred eighty-three million, eight hundred ninety-four thousand, four hundred".