40683478 has 16 divisors (see below), whose sum is σ = 66951360. Its totient is φ = 18387400.

The previous prime is 40683473. The next prime is 40683553. The reversal of 40683478 is 87438604.

It is a self number, because there is not a number n which added to its sum of digits gives 40683478.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40683473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1228 + ... + 9103.

It is an arithmetic number, because the mean of its divisors is an integer number (4184460).

Almost surely, 2^40683478 is an apocalyptic number.

40683478 is a deficient number, since it is larger than the sum of its proper divisors (26267882).

40683478 is a wasteful number, since it uses less digits than its factorization.

40683478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10523.

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 40683478 is about 6378.3601340784. The cubic root of 40683478 is about 343.9320838970.

The spelling of 40683478 in words is "forty million, six hundred eighty-three thousand, four hundred seventy-eight".