40004230 has 32 divisors (see below), whose sum is σ = 87137856. Its totient is φ = 12908544.

The previous prime is 40004203. The next prime is 40004231. The reversal of 40004230 is 3240004.

It is a self number, because there is not a number n which added to its sum of digits gives 40004230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40004231) 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 15 ways as a sum of consecutive naturals, for example, 15619 + ... + 17998.

It is an arithmetic number, because the mean of its divisors is an integer number (2723058).

Almost surely, 2^40004230 is an apocalyptic number.

40004230 is an abundant number, since it is smaller than the sum of its proper divisors (47133626).

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

40004230 is a wasteful number, since it uses less digits than its factorization.

40004230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33648.

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 40004230 is about 6324.8897223588. The cubic root of 40004230 is about 342.0072442408.

Adding to 40004230 its reverse (3240004), we get a palindrome (43244234).

The spelling of 40004230 in words is "forty million, four thousand, two hundred thirty".