40686453 has 12 divisors (see below), whose sum is σ = 58888908. Its totient is φ = 27069120.

The previous prime is 40686433. The next prime is 40686461. The reversal of 40686453 is 35468604.

40686453 is a `hidden beast` number, since 4 + 0 + 6 + 8 + 645 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11168964 + 29517489 = 3342^2 + 5433^2 .

It is not a de Polignac number, because 40686453 - 2¹⁸ = 40424309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40686433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 351 + ... + 9027.

It is an arithmetic number, because the mean of its divisors is an integer number (4907409).

Almost surely, 2^40686453 is an apocalyptic number.

It is an amenable number.

40686453 is a deficient number, since it is larger than the sum of its proper divisors (18202455).

40686453 is a wasteful number, since it uses less digits than its factorization.

40686453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9204 (or 9201 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 40686453 is about 6378.5933402279. The cubic root of 40686453 is about 343.9404670955.

The spelling of 40686453 in words is "forty million, six hundred eighty-six thousand, four hundred fifty-three".