40769791 has 4 divisors (see below), whose sum is σ = 43168032. Its totient is φ = 38371552.

The previous prime is 40769789. The next prime is 40769803. The reversal of 40769791 is 19796704.

It is a happy number.

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 40769791 - 2¹ = 40769789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40769191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1199095 + ... + 1199128.

It is an arithmetic number, because the mean of its divisors is an integer number (10792008).

Almost surely, 2^40769791 is an apocalyptic number.

40769791 is a deficient number, since it is larger than the sum of its proper divisors (2398241).

40769791 is a wasteful number, since it uses less digits than its factorization.

40769791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2398240.

The product of its (nonzero) digits is 95256, while the sum is 43.

The square root of 40769791 is about 6385.1226299892. The cubic root of 40769791 is about 344.1751378555.

The spelling of 40769791 in words is "forty million, seven hundred sixty-nine thousand, seven hundred ninety-one".