40033222400 has 108 divisors (see below), whose sum is σ = 99170996400. Its totient is φ = 15999959040.

The previous prime is 40033222381. The next prime is 40033222417. The reversal of 40033222400 is 422233004.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12023936 + ... + 12027264.

Almost surely, 2^40033222400 is an apocalyptic number.

40033222400 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 40033222400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49585498200).

40033222400 is an abundant number, since it is smaller than the sum of its proper divisors (59137774000).

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

40033222400 is a wasteful number, since it uses less digits than its factorization.

40033222400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5234 (or 5215 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 40033222400 its reverse (422233004), we get a palindrome (40455455404).

The spelling of 40033222400 in words is "forty billion, thirty-three million, two hundred twenty-two thousand, four hundred".