40068783 has 32 divisors (see below), whose sum is σ = 62599680. Its totient is φ = 25280640.

The previous prime is 40068781. The next prime is 40068793. The reversal of 40068783 is 38786004.

It is not a de Polignac number, because 40068783 - 2¹ = 40068781 is a prime.

It is a super-2 number, since 2×40068783² = 3211014742202178, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40068781) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69888 + ... + 70458.

It is an arithmetic number, because the mean of its divisors is an integer number (1956240).

Almost surely, 2^40068783 is an apocalyptic number.

40068783 is a deficient number, since it is larger than the sum of its proper divisors (22530897).

40068783 is a wasteful number, since it uses less digits than its factorization.

40068783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716 (or 710 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 40068783 is about 6329.9907582871. The cubic root of 40068783 is about 342.1911058731.

The spelling of 40068783 in words is "forty million, sixty-eight thousand, seven hundred eighty-three".