40014320 has 20 divisors (see below), whose sum is σ = 93033480. Its totient is φ = 16005696.

The previous prime is 40014313. The next prime is 40014329. The reversal of 40014320 is 2341004.

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

It is a super-2 number, since 2×40014320² = 3202291610124800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40014295 and 40014304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40014329) 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, 250010 + ... + 250169.

It is an arithmetic number, because the mean of its divisors is an integer number (4651674).

Almost surely, 2^40014320 is an apocalyptic number.

40014320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40014320 is an abundant number, since it is smaller than the sum of its proper divisors (53019160).

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

40014320 is a wasteful number, since it uses less digits than its factorization.

40014320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500192 (or 500186 counting only the distinct ones).

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

The square root of 40014320 is about 6325.6873144347. The cubic root of 40014320 is about 342.0359958921.

Adding to 40014320 its reverse (2341004), we get a palindrome (42355324).

The spelling of 40014320 in words is "forty million, fourteen thousand, three hundred twenty".