40434021200 has 120 divisors (see below), whose sum is σ = 97813778208. Its totient is φ = 16062359040.

The previous prime is 40434021169. The next prime is 40434021203. The reversal of 40434021200 is 212043404.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40434021203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61920074 + ... + 61920726.

Almost surely, 2^40434021200 is an apocalyptic number.

40434021200 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 40434021200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48906889104).

40434021200 is an abundant number, since it is smaller than the sum of its proper divisors (57379757008).

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

40434021200 is a wasteful number, since it uses less digits than its factorization.

40434021200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1501 (or 1490 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 40434021200 its reverse (212043404), we get a palindrome (40646064604).

The spelling of 40434021200 in words is "forty billion, four hundred thirty-four million, twenty-one thousand, two hundred".