40311424 has 16 divisors (see below), whose sum is σ = 80308170. Its totient is φ = 20155648.

The previous prime is 40311391. The next prime is 40311431. The reversal of 40311424 is 42411304.

It can be written as a sum of positive squares in only one way, i.e., 38440000 + 1871424 = 6200^2 + 1368^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157339 + ... + 157594.

Almost surely, 2^40311424 is an apocalyptic number.

It is an amenable number.

40311424 is a deficient number, since it is larger than the sum of its proper divisors (39996746).

40311424 is an equidigital number, since it uses as much as digits as its factorization.

40311424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314947 (or 314935 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 40311424 is about 6349.1278141175. The cubic root of 40311424 is about 342.8804418029.

Adding to 40311424 its reverse (42411304), we get a palindrome (82722728).

The spelling of 40311424 in words is "forty million, three hundred eleven thousand, four hundred twenty-four".