40808308 has 6 divisors (see below), whose sum is σ = 71414546. Its totient is φ = 20404152.

The previous prime is 40808303. The next prime is 40808321. The reversal of 40808308 is 80380804.

It can be written as a sum of positive squares in only one way, i.e., 40806544 + 1764 = 6388^2 + 42^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40808308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40808303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5101035 + ... + 5101042.

Almost surely, 2^40808308 is an apocalyptic number.

It is an amenable number.

40808308 is a deficient number, since it is larger than the sum of its proper divisors (30606238).

40808308 is a wasteful number, since it uses less digits than its factorization.

40808308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10202081 (or 10202079 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 40808308 is about 6388.1380698917. The cubic root of 40808308 is about 344.2834894966.

The spelling of 40808308 in words is "forty million, eight hundred eight thousand, three hundred eight".