40208072 has 16 divisors (see below), whose sum is σ = 75490800. Its totient is φ = 20077200.

The previous prime is 40208059. The next prime is 40208083. The reversal of 40208072 is 27080204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3947 + ... + 9797.

It is an arithmetic number, because the mean of its divisors is an integer number (4718175).

Almost surely, 2^40208072 is an apocalyptic number.

It is an amenable number.

40208072 is a deficient number, since it is larger than the sum of its proper divisors (35282728).

40208072 is a wasteful number, since it uses less digits than its factorization.

40208072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6716 (or 6712 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 40208072 is about 6340.9835199281. The cubic root of 40208072 is about 342.5871609381.

Adding to 40208072 its reverse (27080204), we get a palindrome (67288276).

The spelling of 40208072 in words is "forty million, two hundred eight thousand, seventy-two".