40768743 has 8 divisors (see below), whose sum is σ = 54421888. Its totient is φ = 27147384.

The previous prime is 40768729. The next prime is 40768753. The reversal of 40768743 is 34786704.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40768743 - 2¹⁶ = 40703207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40768753) 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, 4771 + ... + 10212.

It is an arithmetic number, because the mean of its divisors is an integer number (6802736).

Almost surely, 2^40768743 is an apocalyptic number.

40768743 is a deficient number, since it is larger than the sum of its proper divisors (13653145).

40768743 is a wasteful number, since it uses less digits than its factorization.

40768743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15893.

The product of its (nonzero) digits is 112896, while the sum is 39.

The square root of 40768743 is about 6385.0405636926. The cubic root of 40768743 is about 344.1721887877.

The spelling of 40768743 in words is "forty million, seven hundred sixty-eight thousand, seven hundred forty-three".