40455771 has 4 divisors (see below), whose sum is σ = 53941032. Its totient is φ = 26970512.

The previous prime is 40455761. The next prime is 40455773. The reversal of 40455771 is 17755404.

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 40455771 - 2¹¹ = 40453723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40455773) 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, 6742626 + ... + 6742631.

It is an arithmetic number, because the mean of its divisors is an integer number (13485258).

Almost surely, 2^40455771 is an apocalyptic number.

40455771 is a deficient number, since it is larger than the sum of its proper divisors (13485261).

40455771 is a wasteful number, since it uses less digits than its factorization.

40455771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13485260.

The product of its (nonzero) digits is 19600, while the sum is 33.

The square root of 40455771 is about 6360.4851230075. The cubic root of 40455771 is about 343.2892159565.

The spelling of 40455771 in words is "forty million, four hundred fifty-five thousand, seven hundred seventy-one".