40050320 has 20 divisors (see below), whose sum is σ = 93117180. Its totient is φ = 16020096.

The previous prime is 40050281. The next prime is 40050323. The reversal of 40050320 is 2305004.

It can be written as a sum of positive squares in 2 ways, for example, as 9535744 + 30514576 = 3088^2 + 5524^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 40050295 and 40050304.

It is not an unprimeable number, because it can be changed into a prime (40050323) 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 3 ways as a sum of consecutive naturals, for example, 250235 + ... + 250394.

It is an arithmetic number, because the mean of its divisors is an integer number (4655859).

Almost surely, 2^40050320 is an apocalyptic number.

40050320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40050320 is an abundant number, since it is smaller than the sum of its proper divisors (53066860).

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

40050320 is a wasteful number, since it uses less digits than its factorization.

40050320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500642 (or 500636 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 40050320 is about 6328.5322152929. The cubic root of 40050320 is about 342.1385392235.

Adding to 40050320 its reverse (2305004), we get a palindrome (42355324).

The spelling of 40050320 in words is "forty million, fifty thousand, three hundred twenty".