40523807 has 4 divisors (see below), whose sum is σ = 40553520. Its totient is φ = 40494096.

The previous prime is 40523803. The next prime is 40523831. The reversal of 40523807 is 70832504.

It is a happy number.

40523807 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 40523807 - 2² = 40523803 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40523807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40523803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12707 + ... + 15572.

It is an arithmetic number, because the mean of its divisors is an integer number (10138380).

Almost surely, 2^40523807 is an apocalyptic number.

40523807 is a deficient number, since it is larger than the sum of its proper divisors (29713).

40523807 is a wasteful number, since it uses less digits than its factorization.

40523807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29712.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 40523807 is about 6365.8312104548. The cubic root of 40523807 is about 343.4815489977.

The spelling of 40523807 in words is "forty million, five hundred twenty-three thousand, eight hundred seven".