40770047 has 4 divisors (see below), whose sum is σ = 40792896. Its totient is φ = 40747200.

The previous prime is 40770043. The next prime is 40770077. The reversal of 40770047 is 74007704.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40770047 - 2² = 40770043 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 (40770043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8498 + ... + 12399.

It is an arithmetic number, because the mean of its divisors is an integer number (10198224).

Almost surely, 2^40770047 is an apocalyptic number.

40770047 is a deficient number, since it is larger than the sum of its proper divisors (22849).

40770047 is a wasteful number, since it uses less digits than its factorization.

40770047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22848.

The product of its (nonzero) digits is 5488, while the sum is 29.

The square root of 40770047 is about 6385.1426765578. The cubic root of 40770047 is about 344.1758582308.

The spelling of 40770047 in words is "forty million, seven hundred seventy thousand, forty-seven".