40321204 has 96 divisors (see below), whose sum is σ = 93929472. Its totient is φ = 14688000.

The previous prime is 40321201. The next prime is 40321207. The reversal of 40321204 is 40212304.

It is an interprime number because it is at equal distance from previous prime (40321201) and next prime (40321207).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40321201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 391417 + ... + 391519.

It is an arithmetic number, because the mean of its divisors is an integer number (978432).

Almost surely, 2^40321204 is an apocalyptic number.

40321204 is a gapful number since it is divisible by the number (44) 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 40321204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46964736).

40321204 is an abundant number, since it is smaller than the sum of its proper divisors (53608268).

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

40321204 is a wasteful number, since it uses less digits than its factorization.

40321204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197 (or 195 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 40321204 is about 6349.8979519359. The cubic root of 40321204 is about 342.9081684309.

Adding to 40321204 its reverse (40212304), we get a palindrome (80533508).

Subtracting from 40321204 its reverse (40212304), we obtain a square (108900 = 330²).

The spelling of 40321204 in words is "forty million, three hundred twenty-one thousand, two hundred four".