40685048 has 32 divisors (see below), whose sum is σ = 78075360. Its totient is φ = 19870080.

The previous prime is 40685039. The next prime is 40685053. The reversal of 40685048 is 84058604.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 40684999 and 40685017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128186 + ... + 128502.

It is an arithmetic number, because the mean of its divisors is an integer number (2439855).

Almost surely, 2^40685048 is an apocalyptic number.

It is an amenable number.

40685048 is a deficient number, since it is larger than the sum of its proper divisors (37390312).

40685048 is a wasteful number, since it uses less digits than its factorization.

40685048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647 (or 643 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 40685048 is about 6378.4832052769. The cubic root of 40685048 is about 343.9365080224.

The spelling of 40685048 in words is "forty million, six hundred eighty-five thousand, forty-eight".