40191304 has 24 divisors (see below), whose sum is σ = 78785910. Its totient is φ = 19219904.

The previous prime is 40191301. The next prime is 40191313. The reversal of 40191304 is 40319104.

It can be written as a sum of positive squares in only one way, i.e., 39715204 + 476100 = 6302^2 + 690^2 .

It is not an unprimeable number, because it can be changed into a prime (40191301) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 517 + ... + 8980.

Almost surely, 2^40191304 is an apocalyptic number.

It is an amenable number.

40191304 is a deficient number, since it is larger than the sum of its proper divisors (38594606).

40191304 is a wasteful number, since it uses less digits than its factorization.

40191304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9549 (or 9522 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 40191304 is about 6339.6611896851. The cubic root of 40191304 is about 342.5395311965.

The spelling of 40191304 in words is "forty million, one hundred ninety-one thousand, three hundred four".