40304512 has 16 divisors (see below), whose sum is σ = 80294400. Its totient is φ = 20152192.

The previous prime is 40304503. The next prime is 40304527. The reversal of 40304512 is 21540304.

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

It is a self number, because there is not a number n which added to its sum of digits gives 40304512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157312 + ... + 157567.

It is an arithmetic number, because the mean of its divisors is an integer number (5018400).

Almost surely, 2^40304512 is an apocalyptic number.

It is an amenable number.

40304512 is a deficient number, since it is larger than the sum of its proper divisors (39989888).

40304512 is an equidigital number, since it uses as much as digits as its factorization.

40304512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314893 (or 314881 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 40304512 is about 6348.5834640493. The cubic root of 40304512 is about 342.8608433463.

Adding to 40304512 its reverse (21540304), we get a palindrome (61844816).

The spelling of 40304512 in words is "forty million, three hundred four thousand, five hundred twelve".