40304120 has 32 divisors (see below), whose sum is σ = 90914400. Its totient is φ = 16080768.

The previous prime is 40304101. The next prime is 40304129. The reversal of 40304120 is 2140304.

It is a junction number, because it is equal to n+sod(n) for n = 40304095 and 40304104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40304129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18446 + ... + 20514.

It is an arithmetic number, because the mean of its divisors is an integer number (2841075).

Almost surely, 2^40304120 is an apocalyptic number.

40304120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40304120 is an abundant number, since it is smaller than the sum of its proper divisors (50610280).

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

40304120 is a wasteful number, since it uses less digits than its factorization.

40304120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2567 (or 2563 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 40304120 is about 6348.5525909454. The cubic root of 40304120 is about 342.8597317926.

Adding to 40304120 its reverse (2140304), we get a palindrome (42444424).

The spelling of 40304120 in words is "forty million, three hundred four thousand, one hundred twenty".