40204000 has 144 divisors (see below), whose sum is σ = 108697680. Its totient is φ = 14572800.

The previous prime is 40203991. The next prime is 40204027. The reversal of 40204000 is 40204.

40204000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1747989 + ... + 1748011.

It is an arithmetic number, because the mean of its divisors is an integer number (754845).

Almost surely, 2^40204000 is an apocalyptic number.

40204000 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 40204000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54348840).

40204000 is an abundant number, since it is smaller than the sum of its proper divisors (68493680).

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

40204000 is a wasteful number, since it uses less digits than its factorization.

40204000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90 (or 49 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 10.

The square root of 40204000 is about 6340.6624259615. The cubic root of 40204000 is about 342.5755955820.

Adding to 40204000 its reverse (40204), we get a palindrome (40244204).

40204000 divided by its reverse (40204) gives a cube (1000 = 10³).

The spelling of 40204000 in words is "forty million, two hundred four thousand".