40340304 has 60 divisors (see below), whose sum is σ = 113328436. Its totient is φ = 13395456.

The previous prime is 40340297. The next prime is 40340317. The reversal of 40340304 is 40304304.

It can be written as a sum of positive squares in 2 ways, for example, as 13838400 + 26501904 = 3720^2 + 5148^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65502 + ... + 66114.

Almost surely, 2^40340304 is an apocalyptic number.

It is an amenable number.

40340304 is an abundant number, since it is smaller than the sum of its proper divisors (72988132).

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

40340304 is a wasteful number, since it uses less digits than its factorization.

40340304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084 (or 1075 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 40340304 is about 6351.4017350503. The cubic root of 40340304 is about 342.9623046460.

Adding to 40340304 its reverse (40304304), we get a palindrome (80644608).

The spelling of 40340304 in words is "forty million, three hundred forty thousand, three hundred four".