40247684 has 6 divisors (see below), whose sum is σ = 70433454. Its totient is φ = 20123840.

The previous prime is 40247671. The next prime is 40247693. The reversal of 40247684 is 48674204.

It can be written as a sum of positive squares in only one way, i.e., 27857284 + 12390400 = 5278^2 + 3520^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5030957 + ... + 5030964.

It is an arithmetic number, because the mean of its divisors is an integer number (11738909).

Almost surely, 2^40247684 is an apocalyptic number.

It is an amenable number.

40247684 is a deficient number, since it is larger than the sum of its proper divisors (30185770).

40247684 is a wasteful number, since it uses less digits than its factorization.

40247684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10061925 (or 10061923 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 35.

The square root of 40247684 is about 6344.1062412289. The cubic root of 40247684 is about 342.6996268181.

The spelling of 40247684 in words is "forty million, two hundred forty-seven thousand, six hundred eighty-four".